18697098 has 16 divisors (see below), whose sum is σ = 42736320. Its totient is φ = 5342016.

The previous prime is 18697057. The next prime is 18697139. The reversal of 18697098 is 89079681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18697057) and next prime (18697139).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222543 + ... + 222626.

It is an arithmetic number, because the mean of its divisors is an integer number (2671020).

Almost surely, 2^18697098 is an apocalyptic number.

18697098 is an abundant number, since it is smaller than the sum of its proper divisors (24039222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18697098 is a wasteful number, since it uses less digits than its factorization.

18697098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445181.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 18697098 is about 4324.0141072850. The cubic root of 18697098 is about 265.4145546628.

The spelling of 18697098 in words is "eighteen million, six hundred ninety-seven thousand, ninety-eight".