72487859 has 2 divisors, whose sum is σ = 72487860. Its totient is φ = 72487858.

The previous prime is 72487841. The next prime is 72487867. The reversal of 72487859 is 95878427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72487859 - 2²⁴ = 55710643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72487819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36243929 + 36243930.

It is an arithmetic number, because the mean of its divisors is an integer number (36243930).

Almost surely, 2^72487859 is an apocalyptic number.

72487859 is a deficient number, since it is larger than the sum of its proper divisors (1).

72487859 is an equidigital number, since it uses as much as digits as its factorization.

72487859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 50.

The square root of 72487859 is about 8513.9802090444. The cubic root of 72487859 is about 416.9542684966.

The spelling of 72487859 in words is "seventy-two million, four hundred eighty-seven thousand, eight hundred fifty-nine".