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8709493 = 134631447
BaseRepresentation
bin100001001110…
…010101110101
3121101111011211
4201032111311
54212200433
6510401421
7134013052
oct41162565
917344154
108709493
114a09631
122b00271
131a5c360
14122a029
15b708cd
hex84e575

8709493 has 8 divisors (see below), whose sum is σ = 9406208. Its totient is φ = 8016624.

The previous prime is 8709469. The next prime is 8709509. The reversal of 8709493 is 3949078.

8709493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8709493 - 25 = 8709461 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 (8709443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5296 + ... + 6742.

It is an arithmetic number, because the mean of its divisors is an integer number (1175776).

Almost surely, 28709493 is an apocalyptic number.

It is an amenable number.

8709493 is a deficient number, since it is larger than the sum of its proper divisors (696715).

8709493 is a wasteful number, since it uses less digits than its factorization.

8709493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8709493 is about 2951.1850162265. The cubic root of 8709493 is about 205.7457903643.

The spelling of 8709493 in words is "eight million, seven hundred nine thousand, four hundred ninety-three".

Divisors: 1 13 463 1447 6019 18811 669961 8709493