890897772 has 24 divisors (see below), whose sum is σ = 2086672896. Its totient is φ = 295835728.

The previous prime is 890897771. The next prime is 890897789. The reversal of 890897772 is 277798098.

It is not an unprimeable number, because it can be changed into a prime (890897771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137988 + ... + 144299.

It is an arithmetic number, because the mean of its divisors is an integer number (86944704).

Almost surely, 2^890897772 is an apocalyptic number.

It is an amenable number.

890897772 is an abundant number, since it is smaller than the sum of its proper divisors (1195775124).

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

890897772 is a wasteful number, since it uses less digits than its factorization.

890897772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282557 (or 282555 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 57.

The square root of 890897772 is about 29847.9106806490. The cubic root of 890897772 is about 962.2234962647.

The spelling of 890897772 in words is "eight hundred ninety million, eight hundred ninety-seven thousand, seven hundred seventy-two".