872723650 has 12 divisors (see below), whose sum is σ = 1623266082. Its totient is φ = 349089440.

The previous prime is 872723633. The next prime is 872723653. The reversal of 872723650 is 56327278.

It can be written as a sum of positive squares in 3 ways, for example, as 828806521 + 43917129 = 28789^2 + 6627^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (872723653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8727187 + ... + 8727286.

Almost surely, 2^872723650 is an apocalyptic number.

872723650 is a deficient number, since it is larger than the sum of its proper divisors (750542432).

872723650 is a wasteful number, since it uses less digits than its factorization.

872723650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454485 (or 17454480 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 872723650 is about 29541.8965200273. The cubic root of 872723650 is about 955.6354423376.

The spelling of 872723650 in words is "eight hundred seventy-two million, seven hundred twenty-three thousand, six hundred fifty".