972068021 has 8 divisors (see below), whose sum is σ = 1015373184. Its totient is φ = 928849680.

The previous prime is 972068003. The next prime is 972068039. The reversal of 972068021 is 120860279.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (972068003) and next prime (972068039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972068021 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 (972068051) 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, 1736 + ... + 44126.

It is an arithmetic number, because the mean of its divisors is an integer number (126921648).

Almost surely, 2^972068021 is an apocalyptic number.

It is an amenable number.

972068021 is a deficient number, since it is larger than the sum of its proper divisors (43305163).

972068021 is a wasteful number, since it uses less digits than its factorization.

972068021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43411.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 972068021 is about 31178.0054044514. The cubic root of 972068021 is about 990.6012811658.

The spelling of 972068021 in words is "nine hundred seventy-two million, sixty-eight thousand, twenty-one".