72495239 has 4 divisors (see below), whose sum is σ = 72871056. Its totient is φ = 72119424.

The previous prime is 72495233. The next prime is 72495277. The reversal of 72495239 is 93259427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72495239 - 2⁴ = 72495223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72495196 and 72495205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72495233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187619 + ... + 188004.

It is an arithmetic number, because the mean of its divisors is an integer number (18217764).

Almost surely, 2^72495239 is an apocalyptic number.

72495239 is a deficient number, since it is larger than the sum of its proper divisors (375817).

72495239 is a wasteful number, since it uses less digits than its factorization.

72495239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375816.

The product of its digits is 136080, while the sum is 41.

The square root of 72495239 is about 8514.4136028267. The cubic root of 72495239 is about 416.9684180756.

The spelling of 72495239 in words is "seventy-two million, four hundred ninety-five thousand, two hundred thirty-nine".