891464 has 16 divisors (see below), whose sum is σ = 1910400. Its totient is φ = 382032.

The previous prime is 891439. The next prime is 891481. The reversal of 891464 is 464198.

It is a self number, because there is not a number n which added to its sum of digits gives 891464.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891464.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7904 + ... + 8015.

It is an arithmetic number, because the mean of its divisors is an integer number (119400).

2⁸⁹¹⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

891464 is an abundant number, since it is smaller than the sum of its proper divisors (1018936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

891464 is a wasteful number, since it uses less digits than its factorization.

891464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932 (or 15928 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 891464 is about 944.1737128304. The cubic root of 891464 is about 96.2427306592.

The spelling of 891464 in words is "eight hundred ninety-one thousand, four hundred sixty-four".