872461 has 8 divisors (see below), whose sum is σ = 938880. Its totient is φ = 808128.

The previous prime is 872453. The next prime is 872471. The reversal of 872461 is 164278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872461 - 2³ = 872453 is a prime.

It is a super-2 number, since 2×872461² = 1522376393042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872411) 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, 405 + ... + 1381.

It is an arithmetic number, because the mean of its divisors is an integer number (117360).

2⁸⁷²⁴⁶¹ is an apocalyptic number.

It is an amenable number.

872461 is a deficient number, since it is larger than the sum of its proper divisors (66419).

872461 is a wasteful number, since it uses less digits than its factorization.

872461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its digits is 2688, while the sum is 28.

The square root of 872461 is about 934.0562081588. The cubic root of 872461 is about 95.5539565163.

The spelling of 872461 in words is "eight hundred seventy-two thousand, four hundred sixty-one".