872417028 has 48 divisors (see below), whose sum is σ = 2332394624. Its totient is φ = 248624640.

The previous prime is 872417027. The next prime is 872417057. The reversal of 872417028 is 820714278.

It is a super-2 number, since 2×872417028² = 1522222941488705568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872417023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20268 + ... + 46428.

Almost surely, 2^872417028 is an apocalyptic number.

It is an amenable number.

872417028 is an abundant number, since it is smaller than the sum of its proper divisors (1459977596).

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

872417028 is a wasteful number, since it uses less digits than its factorization.

872417028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26572 (or 26570 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 872417028 is about 29536.7064514648. The cubic root of 872417028 is about 955.5235118413.

It can be divided in two parts, 8724 and 17028, that added together give a palindrome (25752).

The spelling of 872417028 in words is "eight hundred seventy-two million, four hundred seventeen thousand, twenty-eight".