891879252 has 48 divisors (see below), whose sum is σ = 2301362112. Its totient is φ = 266561280.

The previous prime is 891879251. The next prime is 891879271. The reversal of 891879252 is 252978198.

It is a junction number, because it is equal to n+sod(n) for n = 891879195 and 891879204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891879251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36643 + ... + 55914.

It is an arithmetic number, because the mean of its divisors is an integer number (47945044).

Almost surely, 2^891879252 is an apocalyptic number.

It is an amenable number.

891879252 is an abundant number, since it is smaller than the sum of its proper divisors (1409482860).

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

891879252 is a wasteful number, since it uses less digits than its factorization.

891879252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92648 (or 92646 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The square root of 891879252 is about 29864.3475066843. The cubic root of 891879252 is about 962.5767191784.

The spelling of 891879252 in words is "eight hundred ninety-one million, eight hundred seventy-nine thousand, two hundred fifty-two".