862749772 has 12 divisors (see below), whose sum is σ = 1510082280. Its totient is φ = 431297696.

The previous prime is 862749731. The next prime is 862749773. The reversal of 862749772 is 277947268.

It is not an unprimeable number, because it can be changed into a prime (862749773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11208 + ... + 43024.

It is an arithmetic number, because the mean of its divisors is an integer number (125840190).

Almost surely, 2^862749772 is an apocalyptic number.

It is an amenable number.

862749772 is a deficient number, since it is larger than the sum of its proper divisors (647332508).

862749772 is a wasteful number, since it uses less digits than its factorization.

862749772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38600 (or 38598 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 52.

The square root of 862749772 is about 29372.6024042814. The cubic root of 862749772 is about 951.9810082010.

The spelling of 862749772 in words is "eight hundred sixty-two million, seven hundred forty-nine thousand, seven hundred seventy-two".