976812500 has 42 divisors (see below), whose sum is σ = 2136886710. Its totient is φ = 390700000.

The previous prime is 976812493. The next prime is 976812509. The reversal of 976812500 is 5218679.

It can be written as a sum of positive squares in 7 ways, for example, as 865889476 + 110923024 = 29426^2 + 10532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (976812509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 54686 + ... + 70314.

It is an arithmetic number, because the mean of its divisors is an integer number (50878255).

Almost surely, 2^976812500 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 976812500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068443355).

976812500 is an abundant number, since it is smaller than the sum of its proper divisors (1160074210).

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

976812500 is an equidigital number, since it uses as much as digits as its factorization.

976812500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15663 (or 15636 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 976812500 is about 31253.9997440328. Note that the first 3 decimals coincide. The cubic root of 976812500 is about 992.2103116462.

The spelling of 976812500 in words is "nine hundred seventy-six million, eight hundred twelve thousand, five hundred".