972856061 has 2 divisors, whose sum is σ = 972856062. Its totient is φ = 972856060.

The previous prime is 972856051. The next prime is 972856081. The reversal of 972856061 is 160658279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493683961 + 479172100 = 22219^2 + 21890^2 .

It is a cyclic number.

It is not a de Polignac number, because 972856061 - 2²⁶ = 905747197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972856021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486428030 + 486428031.

It is an arithmetic number, because the mean of its divisors is an integer number (486428031).

Almost surely, 2^972856061 is an apocalyptic number.

It is an amenable number.

972856061 is a deficient number, since it is larger than the sum of its proper divisors (1).

972856061 is an equidigital number, since it uses as much as digits as its factorization.

972856061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 972856061 is about 31190.6405993849. The cubic root of 972856061 is about 990.8688970673.

The spelling of 972856061 in words is "nine hundred seventy-two million, eight hundred fifty-six thousand, sixty-one".