960828021 has 8 divisors (see below), whose sum is σ = 1423448960. Its totient is φ = 640551996.

The previous prime is 960828017. The next prime is 960828023. The reversal of 960828021 is 120828069.

960828021 is a `hidden beast` number, since 9 + 608 + 28 + 0 + 21 = 666.

It is not a de Polignac number, because 960828021 - 2² = 960828017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (960828023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17793085 + ... + 17793138.

It is an arithmetic number, because the mean of its divisors is an integer number (177931120).

Almost surely, 2^960828021 is an apocalyptic number.

It is an amenable number.

960828021 is a deficient number, since it is larger than the sum of its proper divisors (462620939).

960828021 is a wasteful number, since it uses less digits than its factorization.

960828021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35586232 (or 35586226 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 960828021 is about 30997.2260210490. The cubic root of 960828021 is about 986.7683698096.

The spelling of 960828021 in words is "nine hundred sixty million, eight hundred twenty-eight thousand, twenty-one".