872464278 has 32 divisors (see below), whose sum is σ = 1995888384. Its totient is φ = 249064992.

The previous prime is 872464277. The next prime is 872464291.

It is a happy number.

872464278 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×872464278² = 1522387832772122568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872464277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45501 + ... + 61767.

It is an arithmetic number, because the mean of its divisors is an integer number (62371512).

Almost surely, 2^872464278 is an apocalyptic number.

872464278 is an abundant number, since it is smaller than the sum of its proper divisors (1123424106).

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

872464278 is a wasteful number, since it uses less digits than its factorization.

872464278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17556.

The product of its digits is 1204224, while the sum is 48.

The square root of 872464278 is about 29537.5062928474. The cubic root of 872464278 is about 955.5407618756.

The spelling of 872464278 in words is "eight hundred seventy-two million, four hundred sixty-four thousand, two hundred seventy-eight".