72017265 has 8 divisors (see below), whose sum is σ = 115227648. Its totient is φ = 38409200.

The previous prime is 72017251. The next prime is 72017293. The reversal of 72017265 is 56271027.

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

It is not a de Polignac number, because 72017265 - 2⁵ = 72017233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400561 + ... + 2400590.

It is an arithmetic number, because the mean of its divisors is an integer number (14403456).

Almost surely, 2^72017265 is an apocalyptic number.

It is an amenable number.

72017265 is a deficient number, since it is larger than the sum of its proper divisors (43210383).

72017265 is a wasteful number, since it uses less digits than its factorization.

72017265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801159.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 72017265 is about 8486.2986631393. The cubic root of 72017265 is about 416.0500144040.

The spelling of 72017265 in words is "seventy-two million, seventeen thousand, two hundred sixty-five".