872438 has 16 divisors (see below), whose sum is σ = 1512864. Its totient is φ = 369600.

The previous prime is 872437. The next prime is 872441. The reversal of 872438 is 834278.

It is a super-2 number, since 2×872438² = 1522296127688, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106 + ... + 1722.

It is an arithmetic number, because the mean of its divisors is an integer number (94554).

2⁸⁷²⁴³⁸ is an apocalyptic number.

872438 is a deficient number, since it is larger than the sum of its proper divisors (640426).

872438 is a wasteful number, since it uses less digits than its factorization.

872438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its digits is 10752, while the sum is 32.

The square root of 872438 is about 934.0438961848. The cubic root of 872438 is about 95.5531168378.

The spelling of 872438 in words is "eight hundred seventy-two thousand, four hundred thirty-eight".