72285715 has 8 divisors (see below), whose sum is σ = 86906448. Its totient is φ = 57719520.

The previous prime is 72285713. The next prime is 72285767. The reversal of 72285715 is 51758227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72285715 - 2¹ = 72285713 is a prime.

It is a super-2 number, since 2×72285715² = 10450449186122450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72285713) 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, 10657 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (10863306).

Almost surely, 2^72285715 is an apocalyptic number.

72285715 is a deficient number, since it is larger than the sum of its proper divisors (14620733).

72285715 is a wasteful number, since it uses less digits than its factorization.

72285715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27269.

The product of its digits is 39200, while the sum is 37.

The square root of 72285715 is about 8502.1006227873. The cubic root of 72285715 is about 416.5663264161.

The spelling of 72285715 in words is "seventy-two million, two hundred eighty-five thousand, seven hundred fifteen".