72575998 has 8 divisors (see below), whose sum is σ = 118760760. Its totient is φ = 32989080.

The previous prime is 72575977. The next prime is 72575999. The reversal of 72575998 is 89957527.

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

It is a super-3 number, since 3×72575998³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72575999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649433 + ... + 1649476.

It is an arithmetic number, because the mean of its divisors is an integer number (14845095).

Almost surely, 2^72575998 is an apocalyptic number.

72575998 is a deficient number, since it is larger than the sum of its proper divisors (46184762).

72575998 is a wasteful number, since it uses less digits than its factorization.

72575998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298922.

The product of its digits is 1587600, while the sum is 52.

The square root of 72575998 is about 8519.1547702809. The cubic root of 72575998 is about 417.1231935548.

The spelling of 72575998 in words is "seventy-two million, five hundred seventy-five thousand, nine hundred ninety-eight".