72296677 has 2 divisors, whose sum is σ = 72296678. Its totient is φ = 72296676.

The previous prime is 72296657. The next prime is 72296683. The reversal of 72296677 is 77669227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70660836 + 1635841 = 8406^2 + 1279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72296677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72296647) 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, 36148338 + 36148339.

It is an arithmetic number, because the mean of its divisors is an integer number (36148339).

Almost surely, 2^72296677 is an apocalyptic number.

It is an amenable number.

72296677 is a deficient number, since it is larger than the sum of its proper divisors (1).

72296677 is an equidigital number, since it uses as much as digits as its factorization.

72296677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 46.

The square root of 72296677 is about 8502.7452625608. The cubic root of 72296677 is about 416.5873825324.

The spelling of 72296677 in words is "seventy-two million, two hundred ninety-six thousand, six hundred seventy-seven".