72492479 has 2 divisors, whose sum is σ = 72492480. Its totient is φ = 72492478.

The previous prime is 72492473. The next prime is 72492493. The reversal of 72492479 is 97429427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72492479 - 2²⁰ = 71443903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72492473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36246239 + 36246240.

It is an arithmetic number, because the mean of its divisors is an integer number (36246240).

Almost surely, 2^72492479 is an apocalyptic number.

72492479 is a deficient number, since it is larger than the sum of its proper divisors (1).

72492479 is an equidigital number, since it uses as much as digits as its factorization.

72492479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 72492479 is about 8514.2515231816. The cubic root of 72492479 is about 416.9631264755.

The spelling of 72492479 in words is "seventy-two million, four hundred ninety-two thousand, four hundred seventy-nine".