891319052 has 24 divisors (see below), whose sum is σ = 1682086896. Its totient is φ = 410816448.

The previous prime is 891318991. The next prime is 891319063. The reversal of 891319052 is 250913198.

It is a super-3 number, since 3×891319052³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 891318997 and 891319015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28043 + ... + 50685.

It is an arithmetic number, because the mean of its divisors is an integer number (70086954).

Almost surely, 2^891319052 is an apocalyptic number.

It is an amenable number.

891319052 is a deficient number, since it is larger than the sum of its proper divisors (790767844).

891319052 is a wasteful number, since it uses less digits than its factorization.

891319052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23417 (or 23415 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 891319052 is about 29854.9669569403. The cubic root of 891319052 is about 962.3751416606.

The spelling of 891319052 in words is "eight hundred ninety-one million, three hundred nineteen thousand, fifty-two".