977586397 has 2 divisors, whose sum is σ = 977586398. Its totient is φ = 977586396.

The previous prime is 977586383. The next prime is 977586419. The reversal of 977586397 is 793685779.

977586397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970073316 + 7513081 = 31146^2 + 2741^2 .

It is a cyclic number.

It is not a de Polignac number, because 977586397 - 2¹⁹ = 977062109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977584397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488793198 + 488793199.

It is an arithmetic number, because the mean of its divisors is an integer number (488793199).

Almost surely, 2^977586397 is an apocalyptic number.

It is an amenable number.

977586397 is a deficient number, since it is larger than the sum of its proper divisors (1).

977586397 is an equidigital number, since it uses as much as digits as its factorization.

977586397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20003760, while the sum is 61.

The square root of 977586397 is about 31266.3780601463. The cubic root of 977586397 is about 992.4722745397.

The spelling of 977586397 in words is "nine hundred seventy-seven million, five hundred eighty-six thousand, three hundred ninety-seven".