872457748 has 24 divisors (see below), whose sum is σ = 1638767592. Its totient is φ = 404941824.

The previous prime is 872457701. The next prime is 872457749. The reversal of 872457748 is 847754278.

It can be written as a sum of positive squares in 4 ways, for example, as 563682564 + 308775184 = 23742^2 + 17572^2 .

It is a super-2 number, since 2×872457748² = 1522365044090463008, which contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 872457695 and 872457704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872457749) 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, 82915 + ... + 92842.

It is an arithmetic number, because the mean of its divisors is an integer number (68281983).

Almost surely, 2^872457748 is an apocalyptic number.

It is an amenable number.

872457748 is a deficient number, since it is larger than the sum of its proper divisors (766309844).

872457748 is a wasteful number, since it uses less digits than its factorization.

872457748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175851 (or 175849 counting only the distinct ones).

The product of its digits is 3512320, while the sum is 52.

The square root of 872457748 is about 29537.3957552117. The cubic root of 872457748 is about 955.5383779397.

The spelling of 872457748 in words is "eight hundred seventy-two million, four hundred fifty-seven thousand, seven hundred forty-eight".