872428071 has 32 divisors (see below), whose sum is σ = 1229893632. Its totient is φ = 549319680.

The previous prime is 872428057. The next prime is 872428091. The reversal of 872428071 is 170824278.

It is not a de Polignac number, because 872428071 - 2⁷ = 872427943 is a prime.

It is a super-2 number, since 2×872428071² = 1522261478137562082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872428021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295991 + ... + 1296663.

It is an arithmetic number, because the mean of its divisors is an integer number (38434176).

Almost surely, 2^872428071 is an apocalyptic number.

872428071 is a deficient number, since it is larger than the sum of its proper divisors (357465561).

872428071 is a wasteful number, since it uses less digits than its factorization.

872428071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

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

The square root of 872428071 is about 29536.8933877617. The cubic root of 872428071 is about 955.5275434766.

The spelling of 872428071 in words is "eight hundred seventy-two million, four hundred twenty-eight thousand, seventy-one".