772575231 has 4 divisors (see below), whose sum is σ = 1030100312. Its totient is φ = 515050152.

The previous prime is 772575229. The next prime is 772575241. The reversal of 772575231 is 132575277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132575277 = 3 ⋅44191759.

It is not a de Polignac number, because 772575231 - 2¹ = 772575229 is a prime.

It is a super-2 number, since 2×772575231² = 1193744975109406722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 772575231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772575241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128762536 + ... + 128762541.

It is an arithmetic number, because the mean of its divisors is an integer number (257525078).

Almost surely, 2^772575231 is an apocalyptic number.

772575231 is a deficient number, since it is larger than the sum of its proper divisors (257525081).

772575231 is a wasteful number, since it uses less digits than its factorization.

772575231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257525080.

The product of its digits is 102900, while the sum is 39.

The square root of 772575231 is about 27795.2375596972. The cubic root of 772575231 is about 917.5863128614.

The spelling of 772575231 in words is "seven hundred seventy-two million, five hundred seventy-five thousand, two hundred thirty-one".