18713098 has 4 divisors (see below), whose sum is σ = 28069650. Its totient is φ = 9356548.

The previous prime is 18713027. The next prime is 18713113. The reversal of 18713098 is 89031781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89031781 = 23 ⋅3870947.

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 3448449 = 3907^2 + 1857^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4678273 + ... + 4678276.

Almost surely, 2^18713098 is an apocalyptic number.

18713098 is a deficient number, since it is larger than the sum of its proper divisors (9356552).

18713098 is an equidigital number, since it uses as much as digits as its factorization.

18713098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356551.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 18713098 is about 4325.8638443668. The cubic root of 18713098 is about 265.4902423818.

The spelling of 18713098 in words is "eighteen million, seven hundred thirteen thousand, ninety-eight".