18830913 has 8 divisors (see below), whose sum is σ = 25129248. Its totient is φ = 12543264.

The previous prime is 18830897. The next prime is 18830939. The reversal of 18830913 is 31903881.

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

It is not a de Polignac number, because 18830913 - 2⁴ = 18830897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18830983) 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, 3445 + ... + 7037.

It is an arithmetic number, because the mean of its divisors is an integer number (3141156).

Almost surely, 2^18830913 is an apocalyptic number.

It is an amenable number.

18830913 is a deficient number, since it is larger than the sum of its proper divisors (6298335).

18830913 is a wasteful number, since it uses less digits than its factorization.

18830913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 18830913 is about 4339.4599894457. The cubic root of 18830913 is about 266.0462401005.

The spelling of 18830913 in words is "eighteen million, eight hundred thirty thousand, nine hundred thirteen".