72435715 has 8 divisors (see below), whose sum is σ = 94825008. Its totient is φ = 52680480.

The previous prime is 72435697. The next prime is 72435719. The reversal of 72435715 is 51753427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72435715 - 2¹⁷ = 72304643 is a prime.

It is a super-2 number, since 2×72435715² = 10493865615122450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72435719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658452 + ... + 658561.

It is an arithmetic number, because the mean of its divisors is an integer number (11853126).

Almost surely, 2^72435715 is an apocalyptic number.

72435715 is a deficient number, since it is larger than the sum of its proper divisors (22389293).

72435715 is a wasteful number, since it uses less digits than its factorization.

72435715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317029.

The product of its digits is 29400, while the sum is 34.

The square root of 72435715 is about 8510.9174006096. The cubic root of 72435715 is about 416.8542661006.

The spelling of 72435715 in words is "seventy-two million, four hundred thirty-five thousand, seven hundred fifteen".