65479431 has 8 divisors (see below), whose sum is σ = 87343344. Its totient is φ = 43634240.

The previous prime is 65479429. The next prime is 65479441. The reversal of 65479431 is 13497456.

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 65479431 - 2¹ = 65479429 is a prime.

It is a super-2 number, since 2×65479431² = 8575111768167522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65479431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65479441) 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, 10795 + ... + 15731.

It is an arithmetic number, because the mean of its divisors is an integer number (10917918).

Almost surely, 2^65479431 is an apocalyptic number.

65479431 is a deficient number, since it is larger than the sum of its proper divisors (21863913).

65479431 is a wasteful number, since it uses less digits than its factorization.

65479431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361.

The product of its digits is 90720, while the sum is 39.

The square root of 65479431 is about 8091.9361712757. The cubic root of 65479431 is about 403.0586991979.

The spelling of 65479431 in words is "sixty-five million, four hundred seventy-nine thousand, four hundred thirty-one".