974809836 has 384 divisors, whose sum is σ = 3468165120. Its totient is φ = 228614400.

The previous prime is 974809831. The next prime is 974809841. The reversal of 974809836 is 638908479.

It is an interprime number because it is at equal distance from previous prime (974809831) and next prime (974809841).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (974809831) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7675605 + ... + 7675731.

It is an arithmetic number, because the mean of its divisors is an integer number (9031680).

Almost surely, 2^974809836 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 974809836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734082560).

974809836 is an abundant number, since it is smaller than the sum of its proper divisors (2493355284).

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

974809836 is a wasteful number, since it uses less digits than its factorization.

974809836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 974809836 is about 31221.9447824763. The cubic root of 974809836 is about 991.5317701717.

The spelling of 974809836 in words is "nine hundred seventy-four million, eight hundred nine thousand, eight hundred thirty-six".