972079477 has 2 divisors, whose sum is σ = 972079478. Its totient is φ = 972079476.

The previous prime is 972079447. The next prime is 972079481. The reversal of 972079477 is 774970279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774564561 + 197514916 = 27831^2 + 14054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972079477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972079417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486039738 + 486039739.

It is an arithmetic number, because the mean of its divisors is an integer number (486039739).

Almost surely, 2^972079477 is an apocalyptic number.

It is an amenable number.

972079477 is a deficient number, since it is larger than the sum of its proper divisors (1).

972079477 is an equidigital number, since it uses as much as digits as its factorization.

972079477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555848, while the sum is 52.

The square root of 972079477 is about 31178.1891231675. The cubic root of 972079477 is about 990.6051726231.

The spelling of 972079477 in words is "nine hundred seventy-two million, seventy-nine thousand, four hundred seventy-seven".