18879575 has 24 divisors (see below), whose sum is σ = 27508656. Its totient is φ = 12672000.

The previous prime is 18879533. The next prime is 18879577. The reversal of 18879575 is 57597881.

18879575 = 290² + 291² + ... + 432².

It is not a de Polignac number, because 18879575 - 2¹⁴ = 18863191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18879577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 935 + ... + 6215.

It is an arithmetic number, because the mean of its divisors is an integer number (1146194).

Almost surely, 2^18879575 is an apocalyptic number.

18879575 is a deficient number, since it is larger than the sum of its proper divisors (8629081).

18879575 is a wasteful number, since it uses less digits than its factorization.

18879575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315 (or 5310 counting only the distinct ones).

The product of its digits is 705600, while the sum is 50.

The square root of 18879575 is about 4345.0632906783. The cubic root of 18879575 is about 266.2752112314.

The spelling of 18879575 in words is "eighteen million, eight hundred seventy-nine thousand, five hundred seventy-five".