869228772 has 24 divisors (see below), whose sum is σ = 2061451392. Its totient is φ = 284992800.

The previous prime is 869228771. The next prime is 869228807. The reversal of 869228772 is 277822968.

It is not an unprimeable number, because it can be changed into a prime (869228771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593004 + ... + 594467.

It is an arithmetic number, because the mean of its divisors is an integer number (85893808).

Almost surely, 2^869228772 is an apocalyptic number.

It is an amenable number.

869228772 is an abundant number, since it is smaller than the sum of its proper divisors (1192222620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869228772 is a wasteful number, since it uses less digits than its factorization.

869228772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187539 (or 1187537 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 869228772 is about 29482.6859699044. The cubic root of 869228772 is about 954.3581012169.

The spelling of 869228772 in words is "eight hundred sixty-nine million, two hundred twenty-eight thousand, seven hundred seventy-two".