18379163 has 4 divisors (see below), whose sum is σ = 20050008. Its totient is φ = 16708320.

The previous prime is 18379147. The next prime is 18379171. The reversal of 18379163 is 36197381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36197381 = 11 ⋅3290671.

It is a cyclic number.

It is not a de Polignac number, because 18379163 - 2⁴ = 18379147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18379663) 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, 835406 + ... + 835427.

It is an arithmetic number, because the mean of its divisors is an integer number (5012502).

Almost surely, 2^18379163 is an apocalyptic number.

18379163 is a deficient number, since it is larger than the sum of its proper divisors (1670845).

18379163 is a wasteful number, since it uses less digits than its factorization.

18379163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670844.

The product of its digits is 27216, while the sum is 38.

The square root of 18379163 is about 4287.0926045515. The cubic root of 18379163 is about 263.9015310377.

The spelling of 18379163 in words is "eighteen million, three hundred seventy-nine thousand, one hundred sixty-three".