65031965 has 8 divisors (see below), whose sum is σ = 82145760. Its totient is φ = 49287312.

The previous prime is 65031961. The next prime is 65031979. The reversal of 65031965 is 56913056.

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 65031965 - 2² = 65031961 is a prime.

It is a super-2 number, since 2×65031965² = 8458312943522450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65031961) 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, 342179 + ... + 342368.

It is an arithmetic number, because the mean of its divisors is an integer number (10268220).

Almost surely, 2^65031965 is an apocalyptic number.

It is an amenable number.

65031965 is a deficient number, since it is larger than the sum of its proper divisors (17113795).

65031965 is a wasteful number, since it uses less digits than its factorization.

65031965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684571.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 65031965 is about 8064.2398897850. The cubic root of 65031965 is about 402.1384740316.

The spelling of 65031965 in words is "sixty-five million, thirty-one thousand, nine hundred sixty-five".