872481 has 4 divisors (see below), whose sum is σ = 1163312. Its totient is φ = 581652.

The previous prime is 872479. The next prime is 872533. The reversal of 872481 is 184278.

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 872481 - 2¹ = 872479 is a prime.

It is a super-2 number, since 2×872481² = 1522446190722, which contains 22 as substring.

It is a D-number.

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 872481.

It is not an unprimeable number, because it can be changed into a prime (872411) 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 3 ways as a sum of consecutive naturals, for example, 145411 + ... + 145416.

It is an arithmetic number, because the mean of its divisors is an integer number (290828).

2⁸⁷²⁴⁸¹ is an apocalyptic number.

It is an amenable number.

872481 is a deficient number, since it is larger than the sum of its proper divisors (290831).

872481 is a wasteful number, since it uses less digits than its factorization.

872481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290830.

The product of its digits is 3584, while the sum is 30.

The square root of 872481 is about 934.0669140913. The cubic root of 872481 is about 95.5546866596.

The spelling of 872481 in words is "eight hundred seventy-two thousand, four hundred eighty-one".