976706820 has 72 divisors (see below), whose sum is σ = 2967520920. Its totient is φ = 260029440.

The previous prime is 976706813. The next prime is 976706821. The reversal of 976706820 is 28607679.

It is a happy number.

976706820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46212804 + 930494016 = 6798^2 + 30504^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (976706821) 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, 114876 + ... + 123084.

Almost surely, 2^976706820 is an apocalyptic number.

976706820 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

976706820 is an abundant number, since it is smaller than the sum of its proper divisors (1990814100).

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

976706820 is a wasteful number, since it uses less digits than its factorization.

976706820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885 (or 8880 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 976706820 is about 31252.3090346937. The cubic root of 976706820 is about 992.1745283997.

The spelling of 976706820 in words is "nine hundred seventy-six million, seven hundred six thousand, eight hundred twenty".