891606474 has 32 divisors (see below), whose sum is σ = 2161471680. Its totient is φ = 270183600.

The previous prime is 891606473. The next prime is 891606481. The reversal of 891606474 is 474606198.

891606474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (891606473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749917 + ... + 751104.

It is an arithmetic number, because the mean of its divisors is an integer number (67545990).

Almost surely, 2^891606474 is an apocalyptic number.

891606474 is an abundant number, since it is smaller than the sum of its proper divisors (1269865206).

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

891606474 is a wasteful number, since it uses less digits than its factorization.

891606474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501043 (or 1501037 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 891606474 is about 29859.7802068267. The cubic root of 891606474 is about 962.4785756518.

The spelling of 891606474 in words is "eight hundred ninety-one million, six hundred six thousand, four hundred seventy-four".