865962461 has 16 divisors (see below), whose sum is σ = 1068025728. Its totient is φ = 683726400.

The previous prime is 865962457. The next prime is 865962511. The reversal of 865962461 is 164269568.

It is not a de Polignac number, because 865962461 - 2² = 865962457 is a prime.

It is a super-2 number, since 2×865962461² = 1499781967722353042, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865962431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34991 + ... + 54371.

It is an arithmetic number, because the mean of its divisors is an integer number (66751608).

Almost surely, 2^865962461 is an apocalyptic number.

It is an amenable number.

865962461 is a deficient number, since it is larger than the sum of its proper divisors (202063267).

865962461 is a wasteful number, since it uses less digits than its factorization.

865962461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19892.

The product of its digits is 622080, while the sum is 47.

The square root of 865962461 is about 29427.2401186384. The cubic root of 865962461 is about 953.1611999380.

The spelling of 865962461 in words is "eight hundred sixty-five million, nine hundred sixty-two thousand, four hundred sixty-one".