891648652 has 12 divisors (see below), whose sum is σ = 1561860496. Its totient is φ = 445402800.

The previous prime is 891648643. The next prime is 891648661. The reversal of 891648652 is 256846198.

891648652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (891648643) and next prime (891648661).

It is a super-2 number, since 2×891648652² = 1590074637226834208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 891648596 and 891648605.

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, 100599 + ... + 109102.

Almost surely, 2^891648652 is an apocalyptic number.

It is an amenable number.

891648652 is a deficient number, since it is larger than the sum of its proper divisors (670211844).

891648652 is a wasteful number, since it uses less digits than its factorization.

891648652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210768 (or 210766 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 891648652 is about 29860.4864662316. The cubic root of 891648652 is about 962.4937522954.

The spelling of 891648652 in words is "eight hundred ninety-one million, six hundred forty-eight thousand, six hundred fifty-two".