79600649 has 2 divisors, whose sum is σ = 79600650. Its totient is φ = 79600648.

The previous prime is 79600607. The next prime is 79600663. The reversal of 79600649 is 94600697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 30880249 = 6980^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 79600649 - 2¹² = 79596553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79600249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39800324 + 39800325.

It is an arithmetic number, because the mean of its divisors is an integer number (39800325).

Almost surely, 2^79600649 is an apocalyptic number.

It is an amenable number.

79600649 is a deficient number, since it is larger than the sum of its proper divisors (1).

79600649 is an equidigital number, since it uses as much as digits as its factorization.

79600649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 79600649 is about 8921.9195804490. The cubic root of 79600649 is about 430.1687619528.

The spelling of 79600649 in words is "seventy-nine million, six hundred thousand, six hundred forty-nine".