891873484 has 48 divisors (see below), whose sum is σ = 1659571200. Its totient is φ = 418530816.

The previous prime is 891873473. The next prime is 891873517. The reversal of 891873484 is 484378198.

It is a super-2 number, since 2×891873484² = 1590876622924596512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240077 + ... + 1240795.

It is an arithmetic number, because the mean of its divisors is an integer number (34574400).

Almost surely, 2^891873484 is an apocalyptic number.

It is an amenable number.

891873484 is a deficient number, since it is larger than the sum of its proper divisors (767697716).

891873484 is a wasteful number, since it uses less digits than its factorization.

891873484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982 (or 980 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 891873484 is about 29864.2509365294. The cubic root of 891873484 is about 962.5746441014.

The spelling of 891873484 in words is "eight hundred ninety-one million, eight hundred seventy-three thousand, four hundred eighty-four".