82646677 has 2 divisors, whose sum is σ = 82646678. Its totient is φ = 82646676.

The previous prime is 82646657. The next prime is 82646701. The reversal of 82646677 is 77664628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56340036 + 26306641 = 7506^2 + 5129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82646677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82646617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41323338 + 41323339.

It is an arithmetic number, because the mean of its divisors is an integer number (41323339).

Almost surely, 2^82646677 is an apocalyptic number.

It is an amenable number.

82646677 is a deficient number, since it is larger than the sum of its proper divisors (1).

82646677 is an equidigital number, since it uses as much as digits as its factorization.

82646677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 82646677 is about 9091.0217797561. The cubic root of 82646677 is about 435.5872229591.

It can be divided in two parts, 8264 and 6677, that added together give a palindrome (14941).

The spelling of 82646677 in words is "eighty-two million, six hundred forty-six thousand, six hundred seventy-seven".