72492719 has 6 divisors (see below), whose sum is σ = 78498216. Its totient is φ = 66916200.

The previous prime is 72492701. The next prime is 72492793. The reversal of 72492719 is 91729427.

It is not a de Polignac number, because 72492719 - 2¹² = 72488623 is a prime.

It is a super-2 number, since 2×72492719² = 10510388616025922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72492799) 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 in 5 ways as a sum of consecutive naturals, for example, 214307 + ... + 214644.

It is an arithmetic number, because the mean of its divisors is an integer number (13083036).

Almost surely, 2^72492719 is an apocalyptic number.

72492719 is a deficient number, since it is larger than the sum of its proper divisors (6005497).

72492719 is a wasteful number, since it uses less digits than its factorization.

72492719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428977 (or 428964 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 72492719 is about 8514.2656171863. The cubic root of 72492719 is about 416.9635866200.

The spelling of 72492719 in words is "seventy-two million, four hundred ninety-two thousand, seven hundred nineteen".