891879063 has 16 divisors (see below), whose sum is σ = 1196413152. Its totient is φ = 590976000.

The previous prime is 891879059. The next prime is 891879089. The reversal of 891879063 is 360978198.

It is not a de Polignac number, because 891879063 - 2² = 891879059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 891878997 and 891879015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891379063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549393 + ... + 551013.

It is an arithmetic number, because the mean of its divisors is an integer number (74775822).

Almost surely, 2^891879063 is an apocalyptic number.

891879063 is a deficient number, since it is larger than the sum of its proper divisors (304534089).

891879063 is a wasteful number, since it uses less digits than its factorization.

891879063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 891879063 is about 29864.3443423759. The cubic root of 891879063 is about 962.5766511846.

The spelling of 891879063 in words is "eight hundred ninety-one million, eight hundred seventy-nine thousand, sixty-three".