18700098 has 16 divisors (see below), whose sum is σ = 38270496. Its totient is φ = 6088320.

The previous prime is 18700093. The next prime is 18700103. The reversal of 18700098 is 89000781.

It is an interprime number because it is at equal distance from previous prime (18700093) and next prime (18700103).

It is not an unprimeable number, because it can be changed into a prime (18700093) 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, 35983 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (2391906).

Almost surely, 2^18700098 is an apocalyptic number.

18700098 is an abundant number, since it is smaller than the sum of its proper divisors (19570398).

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

18700098 is a wasteful number, since it uses less digits than its factorization.

18700098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72529.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 18700098 is about 4324.3609932567. The cubic root of 18700098 is about 265.4287493983.

The spelling of 18700098 in words is "eighteen million, seven hundred thousand, ninety-eight".