782012631 has 16 divisors (see below), whose sum is σ = 1109265408. Its totient is φ = 488342400.

The previous prime is 782012587. The next prime is 782012657. The reversal of 782012631 is 136210287.

It is not a de Polignac number, because 782012631 - 2²⁵ = 748458199 is a prime.

It is a super-2 number, since 2×782012631² = 1223087510087084322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782012731) 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, 25575 + ... + 47096.

It is an arithmetic number, because the mean of its divisors is an integer number (69329088).

Almost surely, 2^782012631 is an apocalyptic number.

782012631 is a deficient number, since it is larger than the sum of its proper divisors (327252777).

782012631 is a wasteful number, since it uses less digits than its factorization.

782012631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72902.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 782012631 is about 27964.4887491261. The cubic root of 782012631 is about 921.3074632384.

The spelling of 782012631 in words is "seven hundred eighty-two million, twelve thousand, six hundred thirty-one".