872071473 has 48 divisors (see below), whose sum is σ = 1520055936. Its totient is φ = 439971840.

The previous prime is 872071469. The next prime is 872071477. The reversal of 872071473 is 374170278.

It is an interprime number because it is at equal distance from previous prime (872071469) and next prime (872071477).

It is not a de Polignac number, because 872071473 - 2² = 872071469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (872071477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34033 + ... + 53873.

It is an arithmetic number, because the mean of its divisors is an integer number (31667832).

Almost surely, 2^872071473 is an apocalyptic number.

It is an amenable number.

872071473 is a deficient number, since it is larger than the sum of its proper divisors (647984463).

872071473 is a wasteful number, since it uses less digits than its factorization.

872071473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19894 (or 19887 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 872071473 is about 29530.8562862644. The cubic root of 872071473 is about 955.3973376530.

The spelling of 872071473 in words is "eight hundred seventy-two million, seventy-one thousand, four hundred seventy-three".