72608873 has 2 divisors, whose sum is σ = 72608874. Its totient is φ = 72608872.

The previous prime is 72608869. The next prime is 72608891. The reversal of 72608873 is 37880627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57577744 + 15031129 = 7588^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 72608873 - 2² = 72608869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72608873.

It is not a weakly prime, because it can be changed into another prime (72608813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36304436 + 36304437.

It is an arithmetic number, because the mean of its divisors is an integer number (36304437).

Almost surely, 2^72608873 is an apocalyptic number.

It is an amenable number.

72608873 is a deficient number, since it is larger than the sum of its proper divisors (1).

72608873 is an equidigital number, since it uses as much as digits as its factorization.

72608873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 72608873 is about 8521.0840272820. The cubic root of 72608873 is about 417.1861659578.

The spelling of 72608873 in words is "seventy-two million, six hundred eight thousand, eight hundred seventy-three".