72708007 has 2 divisors, whose sum is σ = 72708008. Its totient is φ = 72708006.

The previous prime is 72707953. The next prime is 72708011. The reversal of 72708007 is 70080727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72708007 - 2⁷ = 72707879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72708007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72708067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36354003 + 36354004.

It is an arithmetic number, because the mean of its divisors is an integer number (36354004).

Almost surely, 2^72708007 is an apocalyptic number.

72708007 is a deficient number, since it is larger than the sum of its proper divisors (1).

72708007 is an equidigital number, since it uses as much as digits as its factorization.

72708007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 72708007 is about 8526.8990260235. The cubic root of 72708007 is about 417.3759431572.

The spelling of 72708007 in words is "seventy-two million, seven hundred eight thousand, seven".