72309714 has 16 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 24074960.

The previous prime is 72309709. The next prime is 72309719. The reversal of 72309714 is 41790327.

It is an interprime number because it is at equal distance from previous prime (72309709) and next prime (72309719).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72309719) 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, 1149 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (9049320).

Almost surely, 2^72309714 is an apocalyptic number.

72309714 is an abundant number, since it is smaller than the sum of its proper divisors (72479406).

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

72309714 is a wasteful number, since it uses less digits than its factorization.

72309714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14145.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 72309714 is about 8503.5118627541. The cubic root of 72309714 is about 416.6124215960.

The spelling of 72309714 in words is "seventy-two million, three hundred nine thousand, seven hundred fourteen".