72587423 has 2 divisors, whose sum is σ = 72587424. Its totient is φ = 72587422.

The previous prime is 72587381. The next prime is 72587509. The reversal of 72587423 is 32478527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72587423 - 2²⁰ = 71538847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72587023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36293711 + 36293712.

It is an arithmetic number, because the mean of its divisors is an integer number (36293712).

Almost surely, 2^72587423 is an apocalyptic number.

72587423 is a deficient number, since it is larger than the sum of its proper divisors (1).

72587423 is an equidigital number, since it uses as much as digits as its factorization.

72587423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 38.

The square root of 72587423 is about 8519.8252916360. The cubic root of 72587423 is about 417.1450804162.

The spelling of 72587423 in words is "seventy-two million, five hundred eighty-seven thousand, four hundred twenty-three".