18899708 has 12 divisors (see below), whose sum is σ = 34141632. Its totient is φ = 9144960.

The previous prime is 18899707. The next prime is 18899717. The reversal of 18899708 is 80799881.

It is a happy number.

It is a super-3 number, since 3×18899708³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18899701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76085 + ... + 76332.

It is an arithmetic number, because the mean of its divisors is an integer number (2845136).

Almost surely, 2^18899708 is an apocalyptic number.

It is an amenable number.

18899708 is a deficient number, since it is larger than the sum of its proper divisors (15241924).

18899708 is a wasteful number, since it uses less digits than its factorization.

18899708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152452 (or 152450 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 18899708 is about 4347.3794405366. The cubic root of 18899708 is about 266.3698287275.

The spelling of 18899708 in words is "eighteen million, eight hundred ninety-nine thousand, seven hundred eight".