72373619 has 2 divisors, whose sum is σ = 72373620. Its totient is φ = 72373618.

The previous prime is 72373597. The next prime is 72373669. The reversal of 72373619 is 91637327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72373619 - 2²⁴ = 55596403 is a prime.

It is a super-2 number, since 2×72373619² = 10475881454314322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72373669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36186809 + 36186810.

It is an arithmetic number, because the mean of its divisors is an integer number (36186810).

Almost surely, 2^72373619 is an apocalyptic number.

72373619 is a deficient number, since it is larger than the sum of its proper divisors (1).

72373619 is an equidigital number, since it uses as much as digits as its factorization.

72373619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 72373619 is about 8507.2685980872. The cubic root of 72373619 is about 416.7351150127.

It can be divided in two parts, 7237 and 3619, that multiplied together give a triangular number (26190703 = T₇₂₃₇).

The spelling of 72373619 in words is "seventy-two million, three hundred seventy-three thousand, six hundred nineteen".