72748499 has 2 divisors, whose sum is σ = 72748500. Its totient is φ = 72748498.

The previous prime is 72748483. The next prime is 72748513. The reversal of 72748499 is 99484727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72748499 - 2⁴ = 72748483 is a prime.

It is not a weakly prime, because it can be changed into another prime (72748409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36374249 + 36374250.

It is an arithmetic number, because the mean of its divisors is an integer number (36374250).

Almost surely, 2^72748499 is an apocalyptic number.

72748499 is a deficient number, since it is larger than the sum of its proper divisors (1).

72748499 is an equidigital number, since it uses as much as digits as its factorization.

72748499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 72748499 is about 8529.2730639838. The cubic root of 72748499 is about 417.4534094089.

The spelling of 72748499 in words is "seventy-two million, seven hundred forty-eight thousand, four hundred ninety-nine".