891413 has 4 divisors (see below), whose sum is σ = 898560. Its totient is φ = 884268.

The previous prime is 891409. The next prime is 891421. The reversal of 891413 is 314198.

891413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 891413 - 2² = 891409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383 + ... + 3636.

It is an arithmetic number, because the mean of its divisors is an integer number (224640).

2⁸⁹¹⁴¹³ is an apocalyptic number.

It is an amenable number.

891413 is a deficient number, since it is larger than the sum of its proper divisors (7147).

891413 is a wasteful number, since it uses less digits than its factorization.

891413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146.

The product of its digits is 864, while the sum is 26.

The square root of 891413 is about 944.1467047022. The cubic root of 891413 is about 96.2408952989.

The spelling of 891413 in words is "eight hundred ninety-one thousand, four hundred thirteen".