72470719 has 2 divisors, whose sum is σ = 72470720. Its totient is φ = 72470718.

The previous prime is 72470707. The next prime is 72470747. The reversal of 72470719 is 91707427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72470719 - 2²³ = 64082111 is a prime.

It is a super-2 number, since 2×72470719² = 10504010224753922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72470759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36235359 + 36235360.

It is an arithmetic number, because the mean of its divisors is an integer number (36235360).

Almost surely, 2^72470719 is an apocalyptic number.

72470719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72470719 is an equidigital number, since it uses as much as digits as its factorization.

72470719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 72470719 is about 8512.9735697933. The cubic root of 72470719 is about 416.9214024892.

The spelling of 72470719 in words is "seventy-two million, four hundred seventy thousand, seven hundred nineteen".