82977577 has 2 divisors, whose sum is σ = 82977578. Its totient is φ = 82977576.

The previous prime is 82977553. The next prime is 82977593. The reversal of 82977577 is 77577928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 30791401 = 7224^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 82977577 - 2¹⁹ = 82453289 is a prime.

It is not a weakly prime, because it can be changed into another prime (82977677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41488788 + 41488789.

It is an arithmetic number, because the mean of its divisors is an integer number (41488789).

Almost surely, 2^82977577 is an apocalyptic number.

It is an amenable number.

82977577 is a deficient number, since it is larger than the sum of its proper divisors (1).

82977577 is an equidigital number, since it uses as much as digits as its factorization.

82977577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728720, while the sum is 52.

The square root of 82977577 is about 9109.2028740170. The cubic root of 82977577 is about 436.1677821977.

The spelling of 82977577 in words is "eighty-two million, nine hundred seventy-seven thousand, five hundred seventy-seven".