976421628 has 432 divisors, whose sum is σ = 3415950720. Its totient is φ = 241024896.

The previous prime is 976421617. The next prime is 976421653. The reversal of 976421628 is 826124679.

It is a happy number.

976421628 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 an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11764075 + ... + 11764157.

Almost surely, 2^976421628 is an apocalyptic number.

976421628 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 976421628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707975360).

976421628 is an abundant number, since it is smaller than the sum of its proper divisors (2439529092).

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

976421628 is a wasteful number, since it uses less digits than its factorization.

976421628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 127 counting only the distinct ones).

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

The square root of 976421628 is about 31247.7459667093. The cubic root of 976421628 is about 992.0779495090.

The spelling of 976421628 in words is "nine hundred seventy-six million, four hundred twenty-one thousand, six hundred twenty-eight".