72063619 has 2 divisors, whose sum is σ = 72063620. Its totient is φ = 72063618.

The previous prime is 72063613. The next prime is 72063683. The reversal of 72063619 is 91636027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72063619 - 2³ = 72063611 is a prime.

It is a super-2 number, since 2×72063619² = 10386330366754322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72063611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36031809 + 36031810.

It is an arithmetic number, because the mean of its divisors is an integer number (36031810).

Almost surely, 2^72063619 is an apocalyptic number.

72063619 is a deficient number, since it is larger than the sum of its proper divisors (1).

72063619 is an equidigital number, since it uses as much as digits as its factorization.

72063619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 72063619 is about 8489.0293320261. The cubic root of 72063619 is about 416.1392589581.

The spelling of 72063619 in words is "seventy-two million, sixty-three thousand, six hundred nineteen".