72486319 has 4 divisors (see below), whose sum is σ = 74254320. Its totient is φ = 70718320.

The previous prime is 72486287. The next prime is 72486329. The reversal of 72486319 is 91368427.

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 72486319 - 2⁵ = 72486287 is a prime.

It is a super-2 number, since 2×72486319² = 10508532884339522, 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 (72486329) 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 3 ways as a sum of consecutive naturals, for example, 883939 + ... + 884020.

It is an arithmetic number, because the mean of its divisors is an integer number (18563580).

Almost surely, 2^72486319 is an apocalyptic number.

72486319 is a deficient number, since it is larger than the sum of its proper divisors (1768001).

72486319 is a wasteful number, since it uses less digits than its factorization.

72486319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768000.

The product of its digits is 72576, while the sum is 40.

The square root of 72486319 is about 8513.8897690774. The cubic root of 72486319 is about 416.9513157532.

The spelling of 72486319 in words is "seventy-two million, four hundred eighty-six thousand, three hundred nineteen".