865307464 has 72 divisors (see below), whose sum is σ = 1951036470. Its totient is φ = 358727040.

The previous prime is 865307441. The next prime is 865307489. The reversal of 865307464 is 464703568.

It can be written as a sum of positive squares in only one way, i.e., 747584964 + 117722500 = 27342^2 + 10850^2 .

It is a super-2 number, since 2×865307464² = 1497514014508222592, 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 865307464.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 375564 + ... + 377860.

Almost surely, 2^865307464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865307464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975518235).

865307464 is an abundant number, since it is smaller than the sum of its proper divisors (1085729006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865307464 is a wasteful number, since it uses less digits than its factorization.

865307464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 865307464 is about 29416.1089201138. The cubic root of 865307464 is about 952.9208218508.

The spelling of 865307464 in words is "eight hundred sixty-five million, three hundred seven thousand, four hundred sixty-four".