72604507 has 2 divisors, whose sum is σ = 72604508. Its totient is φ = 72604506.

The previous prime is 72604489. The next prime is 72604513. The reversal of 72604507 is 70540627.

It is a strong prime.

It is an emirp because it is prime and its reverse (70540627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72604507 - 2¹⁹ = 72080219 is a prime.

It is not a weakly prime, because it can be changed into another prime (72604577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36302253 + 36302254.

It is an arithmetic number, because the mean of its divisors is an integer number (36302254).

Almost surely, 2^72604507 is an apocalyptic number.

72604507 is a deficient number, since it is larger than the sum of its proper divisors (1).

72604507 is an equidigital number, since it uses as much as digits as its factorization.

72604507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 72604507 is about 8520.8278353690. The cubic root of 72604507 is about 417.1778039342.

The spelling of 72604507 in words is "seventy-two million, six hundred four thousand, five hundred seven".