974999988 has 72 divisors (see below), whose sum is σ = 2515793280. Its totient is φ = 318314880.

The previous prime is 974999959. The next prime is 974999989. The reversal of 974999988 is 889999479.

974999988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974999989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 371256 + ... + 373872.

Almost surely, 2^974999988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 974999988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257896640).

974999988 is an abundant number, since it is smaller than the sum of its proper divisors (1540793292).

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

974999988 is a wasteful number, since it uses less digits than its factorization.

974999988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837 (or 2832 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 72.

The square root of 974999988 is about 31224.9897998382. The cubic root of 974999988 is about 991.5962372723.

The spelling of 974999988 in words is "nine hundred seventy-four million, nine hundred ninety-nine thousand, nine hundred eighty-eight".