18352979 has 8 divisors (see below), whose sum is σ = 19470528. Its totient is φ = 17239680.

The previous prime is 18352973. The next prime is 18352981. The reversal of 18352979 is 97925381.

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

It is a cyclic number.

It is not a de Polignac number, because 18352979 - 2⁴ = 18352963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18352973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14294 + ... + 15524.

It is an arithmetic number, because the mean of its divisors is an integer number (2433816).

Almost surely, 2^18352979 is an apocalyptic number.

18352979 is a deficient number, since it is larger than the sum of its proper divisors (1117549).

18352979 is a wasteful number, since it uses less digits than its factorization.

18352979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125.

The product of its digits is 136080, while the sum is 44.

The square root of 18352979 is about 4284.0376982468. The cubic root of 18352979 is about 263.7761484374.

The spelling of 18352979 in words is "eighteen million, three hundred fifty-two thousand, nine hundred seventy-nine".