18996059 has 4 divisors (see below), whose sum is σ = 19509504. Its totient is φ = 18482616.

The previous prime is 18996049. The next prime is 18996077. The reversal of 18996059 is 95069981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95069981 = 9349 ⋅10169.

It is a cyclic number.

It is not a de Polignac number, because 18996059 - 2⁸ = 18995803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18996049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256667 + ... + 256740.

It is an arithmetic number, because the mean of its divisors is an integer number (4877376).

Almost surely, 2^18996059 is an apocalyptic number.

18996059 is a deficient number, since it is larger than the sum of its proper divisors (513445).

18996059 is an equidigital number, since it uses as much as digits as its factorization.

18996059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513444.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 18996059 is about 4358.4468563928. The cubic root of 18996059 is about 266.8217141738.

The spelling of 18996059 in words is "eighteen million, nine hundred ninety-six thousand, fifty-nine".