976621842 has 96 divisors (see below), whose sum is σ = 2480400000. Its totient is φ = 277597152.

The previous prime is 976621829. The next prime is 976621843. The reversal of 976621842 is 248126679.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (976621843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1956909 + ... + 1957407.

It is an arithmetic number, because the mean of its divisors is an integer number (25837500).

Almost surely, 2^976621842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 976621842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240200000).

976621842 is an abundant number, since it is smaller than the sum of its proper divisors (1503778158).

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

976621842 is a wasteful number, since it uses less digits than its factorization.

976621842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 828 counting only the distinct ones).

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

The square root of 976621842 is about 31250.9494575765. The cubic root of 976621842 is about 992.1457529778.

The spelling of 976621842 in words is "nine hundred seventy-six million, six hundred twenty-one thousand, eight hundred forty-two".