72481479 has 16 divisors (see below), whose sum is σ = 111483648. Its totient is φ = 41029632.

The previous prime is 72481463. The next prime is 72481499. The reversal of 72481479 is 97418427.

It is a happy number.

It is not a de Polignac number, because 72481479 - 2⁴ = 72481463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72481479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72481429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13882 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (6967728).

Almost surely, 2^72481479 is an apocalyptic number.

72481479 is a deficient number, since it is larger than the sum of its proper divisors (39002169).

72481479 is a wasteful number, since it uses less digits than its factorization.

72481479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32374.

The product of its digits is 112896, while the sum is 42.

The square root of 72481479 is about 8513.6055229262. The cubic root of 72481479 is about 416.9420354306.

The spelling of 72481479 in words is "seventy-two million, four hundred eighty-one thousand, four hundred seventy-nine".