72713480 has 32 divisors (see below), whose sum is σ = 186978240. Its totient is φ = 24930240.

The previous prime is 72713477. The next prime is 72713489. The reversal of 72713480 is 8431727.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72713489) 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, 129566 + ... + 130125.

It is an arithmetic number, because the mean of its divisors is an integer number (5843070).

Almost surely, 2^72713480 is an apocalyptic number.

72713480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72713480 is an abundant number, since it is smaller than the sum of its proper divisors (114264760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72713480 is a wasteful number, since it uses less digits than its factorization.

72713480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259709 (or 259705 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 72713480 is about 8527.2199455626. The cubic root of 72713480 is about 417.3864153702.

The spelling of 72713480 in words is "seventy-two million, seven hundred thirteen thousand, four hundred eighty".