866962431 has 12 divisors (see below), whose sum is σ = 1281402408. Its totient is φ = 564533424.

The previous prime is 866962427. The next prime is 866962463. The reversal of 866962431 is 134269668.

It is not a de Polignac number, because 866962431 - 2² = 866962427 is a prime.

It is a super-2 number, since 2×866962431² = 1503247713530859522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866962231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1119720 + ... + 1120493.

It is an arithmetic number, because the mean of its divisors is an integer number (106783534).

Almost surely, 2^866962431 is an apocalyptic number.

866962431 is a deficient number, since it is larger than the sum of its proper divisors (414439977).

866962431 is a wasteful number, since it uses less digits than its factorization.

866962431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240262 (or 2240259 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 866962431 is about 29444.2257666932. The cubic root of 866962431 is about 953.5279463836.

The spelling of 866962431 in words is "eight hundred sixty-six million, nine hundred sixty-two thousand, four hundred thirty-one".