18790969 has 8 divisors (see below), whose sum is σ = 19192320. Its totient is φ = 18392496.

The previous prime is 18790939. The next prime is 18790979. The reversal of 18790969 is 96909781.

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 18790969 - 2⁷ = 18790841 is a prime.

It is a super-2 number, since 2×18790969² = 706201031917922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18790939) 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, 16744 + ... + 17830.

It is an arithmetic number, because the mean of its divisors is an integer number (2399040).

Almost surely, 2^18790969 is an apocalyptic number.

It is an amenable number.

18790969 is a deficient number, since it is larger than the sum of its proper divisors (401351).

18790969 is a wasteful number, since it uses less digits than its factorization.

18790969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 18790969 is about 4334.8551302206. The cubic root of 18790969 is about 265.8579951330.

The spelling of 18790969 in words is "eighteen million, seven hundred ninety thousand, nine hundred sixty-nine".