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969406709 = 7912270971
BaseRepresentation
bin111001110001111…
…111100011110101
32111120002222000012
4321301333203311
53441132003314
6240105430005
733010551425
oct7161774365
92446088005
10969406709
11458228677
1223079b305
13125ab814b
1492a66485
155a18b93e
hex39c7f8f5

969406709 has 4 divisors (see below), whose sum is σ = 981677760. Its totient is φ = 957135660.

The previous prime is 969406687. The next prime is 969406727. The reversal of 969406709 is 907604969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 907604969 = 9071000667.

It is a cyclic number.

It is not a de Polignac number, because 969406709 - 212 = 969402613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969406409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6135407 + ... + 6135564.

It is an arithmetic number, because the mean of its divisors is an integer number (245419440).

Almost surely, 2969406709 is an apocalyptic number.

It is an amenable number.

969406709 is a deficient number, since it is larger than the sum of its proper divisors (12271051).

969406709 is a wasteful number, since it uses less digits than its factorization.

969406709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271050.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 969406709 is about 31135.2968349428. The cubic root of 969406709 is about 989.6964375547.

The spelling of 969406709 in words is "nine hundred sixty-nine million, four hundred six thousand, seven hundred nine".

Divisors: 1 79 12270971 969406709