772672631 has 4 divisors (see below), whose sum is σ = 773748000. Its totient is φ = 771597264.

The previous prime is 772672619. The next prime is 772672657. The reversal of 772672631 is 136276277.

772672631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136276277 = 541 ⋅251897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-772672631 is a prime.

It is a super-2 number, since 2×772672631² = 1194045989392924322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772672231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536606 + ... + 538043.

It is an arithmetic number, because the mean of its divisors is an integer number (193437000).

Almost surely, 2^772672631 is an apocalyptic number.

772672631 is a deficient number, since it is larger than the sum of its proper divisors (1075369).

772672631 is a wasteful number, since it uses less digits than its factorization.

772672631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075368.

The product of its digits is 148176, while the sum is 41.

The square root of 772672631 is about 27796.9896031926. The cubic root of 772672631 is about 917.6248718468.

The spelling of 772672631 in words is "seven hundred seventy-two million, six hundred seventy-two thousand, six hundred thirty-one".