72685079 has 2 divisors, whose sum is σ = 72685080. Its totient is φ = 72685078.

The previous prime is 72685073. The next prime is 72685097. The reversal of 72685079 is 97058627.

Together with next prime (72685097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72685079 - 2²⁰ = 71636503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72685073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36342539 + 36342540.

It is an arithmetic number, because the mean of its divisors is an integer number (36342540).

Almost surely, 2^72685079 is an apocalyptic number.

72685079 is a deficient number, since it is larger than the sum of its proper divisors (1).

72685079 is an equidigital number, since it uses as much as digits as its factorization.

72685079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 72685079 is about 8525.5544687721. The cubic root of 72685079 is about 417.3320662762.

The spelling of 72685079 in words is "seventy-two million, six hundred eighty-five thousand, seventy-nine".