72496723 has 24 divisors (see below), whose sum is σ = 85358000. Its totient is φ = 61036416.

The previous prime is 72496703. The next prime is 72496729. The reversal of 72496723 is 32769427.

It is not a de Polignac number, because 72496723 - 2¹³ = 72488531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72496729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207553 + ... + 207901.

Almost surely, 2^72496723 is an apocalyptic number.

72496723 is a deficient number, since it is larger than the sum of its proper divisors (12861277).

72496723 is a wasteful number, since it uses less digits than its factorization.

72496723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 410 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 72496723 is about 8514.5007487227. The cubic root of 72496723 is about 416.9712632138.

The spelling of 72496723 in words is "seventy-two million, four hundred ninety-six thousand, seven hundred twenty-three".