872913 has 4 divisors (see below), whose sum is σ = 1163888. Its totient is φ = 581940.

The previous prime is 872863. The next prime is 872923. The reversal of 872913 is 319278.

It is a happy number.

872913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 872913 - 2⁸ = 872657 is a prime.

It is a D-number.

It is a Duffinian number.

872913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (872923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145483 + ... + 145488.

It is an arithmetic number, because the mean of its divisors is an integer number (290972).

2⁸⁷²⁹¹³ is an apocalyptic number.

It is an amenable number.

872913 is a deficient number, since it is larger than the sum of its proper divisors (290975).

872913 is a wasteful number, since it uses less digits than its factorization.

872913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290974.

The product of its digits is 3024, while the sum is 30.

The square root of 872913 is about 934.2981322897. The cubic root of 872913 is about 95.5704550310.

The spelling of 872913 in words is "eight hundred seventy-two thousand, nine hundred thirteen".