872451 has 10 divisors (see below), whose sum is σ = 1303412. Its totient is φ = 581580.

The previous prime is 872441. The next prime is 872453. The reversal of 872451 is 154278.

It is not a de Polignac number, because 872451 - 2⁵ = 872419 is a prime.

It is a super-2 number, since 2×872451² = 1522341494802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872451.

It is not an unprimeable number, because it can be changed into a prime (872453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5305 + ... + 5466.

2⁸⁷²⁴⁵¹ is an apocalyptic number.

872451 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

872451 is a deficient number, since it is larger than the sum of its proper divisors (430961).

872451 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 872451 = (247158)₁₃.

872451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783 (or 10774 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 872451 is about 934.0508551465. The cubic root of 872451 is about 95.5535914405.

The spelling of 872451 in words is "eight hundred seventy-two thousand, four hundred fifty-one".