72880667 has 2 divisors, whose sum is σ = 72880668. Its totient is φ = 72880666.

The previous prime is 72880663. The next prime is 72880681. The reversal of 72880667 is 76608827.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (76608827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72880667 - 2² = 72880663 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72880663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36440333 + 36440334.

It is an arithmetic number, because the mean of its divisors is an integer number (36440334).

Almost surely, 2^72880667 is an apocalyptic number.

72880667 is a deficient number, since it is larger than the sum of its proper divisors (1).

72880667 is an equidigital number, since it uses as much as digits as its factorization.

72880667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 72880667 is about 8537.0174534201. The cubic root of 72880667 is about 417.7060634323.

The spelling of 72880667 in words is "seventy-two million, eight hundred eighty thousand, six hundred sixty-seven".