891290852 has 12 divisors (see below), whose sum is σ = 1578551856. Its totient is φ = 440276040.

The previous prime is 891290837. The next prime is 891290863. The reversal of 891290852 is 258092198.

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, 1341974 + ... + 1342637.

It is an arithmetic number, because the mean of its divisors is an integer number (131545988).

Almost surely, 2^891290852 is an apocalyptic number.

It is an amenable number.

891290852 is a deficient number, since it is larger than the sum of its proper divisors (687261004).

891290852 is a wasteful number, since it uses less digits than its factorization.

891290852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684698 (or 2684696 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 891290852 is about 29854.4946699823. The cubic root of 891290852 is about 962.3649921841.

The spelling of 891290852 in words is "eight hundred ninety-one million, two hundred ninety thousand, eight hundred fifty-two".