990826974 has 12 divisors (see below), whose sum is σ = 2146791816. Its totient is φ = 330275652.

The previous prime is 990826961. The next prime is 990826981. The reversal of 990826974 is 479628099.

It is a self number, because there is not a number n which added to its sum of digits gives 990826974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27522954 + ... + 27522989.

It is an arithmetic number, because the mean of its divisors is an integer number (178899318).

Almost surely, 2^990826974 is an apocalyptic number.

990826974 is an abundant number, since it is smaller than the sum of its proper divisors (1155964842).

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

990826974 is a wasteful number, since it uses less digits than its factorization.

990826974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55045951 (or 55045948 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 990826974 is about 31477.4041814124. The cubic root of 990826974 is about 996.9329273493.

The spelling of 990826974 in words is "nine hundred ninety million, eight hundred twenty-six thousand, nine hundred seventy-four".