872051 has 4 divisors (see below), whose sum is σ = 874104. Its totient is φ = 870000.

The previous prime is 872041. The next prime is 872057. The reversal of 872051 is 150278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 872051 - 2⁶ = 871987 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (872057) 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, 125 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (218526).

2⁸⁷²⁰⁵¹ is an apocalyptic number.

872051 is a deficient number, since it is larger than the sum of its proper divisors (2053).

872051 is a wasteful number, since it uses less digits than its factorization.

872051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 872051 is about 933.8367094948. The cubic root of 872051 is about 95.5389861201.

The spelling of 872051 in words is "eight hundred seventy-two thousand, fifty-one".