968377021 has 4 divisors (see below), whose sum is σ = 975769344. Its totient is φ = 960984700.

The previous prime is 968376979. The next prime is 968377051. The reversal of 968377021 is 120773869.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 968377021 - 2⁹ = 968376509 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 (968377051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695965 + ... + 3696226.

It is an arithmetic number, because the mean of its divisors is an integer number (243942336).

Almost surely, 2^968377021 is an apocalyptic number.

It is an amenable number.

968377021 is a deficient number, since it is larger than the sum of its proper divisors (7392323).

968377021 is a wasteful number, since it uses less digits than its factorization.

968377021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392322.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 968377021 is about 31118.7567393044. The cubic root of 968377021 is about 989.3459002741.

The spelling of 968377021 in words is "nine hundred sixty-eight million, three hundred seventy-seven thousand, twenty-one".