72504345 has 8 divisors (see below), whose sum is σ = 116006976. Its totient is φ = 38668976.

The previous prime is 72504343. The next prime is 72504347. The reversal of 72504345 is 54340527.

It is an interprime number because it is at equal distance from previous prime (72504343) and next prime (72504347).

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

It is a cyclic number.

It is not a de Polignac number, because 72504345 - 2¹ = 72504343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72504343) 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, 2416797 + ... + 2416826.

It is an arithmetic number, because the mean of its divisors is an integer number (14500872).

Almost surely, 2^72504345 is an apocalyptic number.

It is an amenable number.

72504345 is a deficient number, since it is larger than the sum of its proper divisors (43502631).

72504345 is a wasteful number, since it uses less digits than its factorization.

72504345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833631.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 72504345 is about 8514.9483263259. The cubic root of 72504345 is about 416.9858755690.

The spelling of 72504345 in words is "seventy-two million, five hundred four thousand, three hundred forty-five".