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968398521 = 3378724311
BaseRepresentation
bin111001101110001…
…001011010111001
32111111012202000220
4321232021122321
53440402223041
6240032050253
732666152206
oct7156113271
92444182026
10968398521
114576aa162
12230393989
1312582429c
1492882cad
155a03cd66
hex39b896b9

968398521 has 8 divisors (see below), whose sum is σ = 1326095424. Its totient is φ = 628150320.

The previous prime is 968398513. The next prime is 968398547. The reversal of 968398521 is 125893869.

It is a happy number.

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

It is not a de Polignac number, because 968398521 - 23 = 968398513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (968398021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4362045 + ... + 4362266.

It is an arithmetic number, because the mean of its divisors is an integer number (165761928).

Almost surely, 2968398521 is an apocalyptic number.

It is an amenable number.

968398521 is a deficient number, since it is larger than the sum of its proper divisors (357696903).

968398521 is a wasteful number, since it uses less digits than its factorization.

968398521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8724351.

The product of its digits is 933120, while the sum is 51.

The square root of 968398521 is about 31119.1021882059. The cubic root of 968398521 is about 989.3532220709.

The spelling of 968398521 in words is "nine hundred sixty-eight million, three hundred ninety-eight thousand, five hundred twenty-one".

Divisors: 1 3 37 111 8724311 26172933 322799507 968398521