72672659 has 2 divisors, whose sum is σ = 72672660. Its totient is φ = 72672658.

The previous prime is 72672647. The next prime is 72672679. The reversal of 72672659 is 95627627.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72672659 is a prime.

It is a super-2 number, since 2×72672659² = 10562630732260562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72672679) 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, 36336329 + 36336330.

It is an arithmetic number, because the mean of its divisors is an integer number (36336330).

Almost surely, 2^72672659 is an apocalyptic number.

72672659 is a deficient number, since it is larger than the sum of its proper divisors (1).

72672659 is an equidigital number, since it uses as much as digits as its factorization.

72672659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 72672659 is about 8524.8260392808. The cubic root of 72672659 is about 417.3082945035.

The spelling of 72672659 in words is "seventy-two million, six hundred seventy-two thousand, six hundred fifty-nine".