18970098 has 16 divisors (see below), whose sum is σ = 43360320. Its totient is φ = 5420016.

The previous prime is 18970097. The next prime is 18970099. The reversal of 18970098 is 89007981.

It is an interprime number because it is at equal distance from previous prime (18970097) and next prime (18970099).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 451669 = 18970098 / (1 + 8 + 9 + 7 + 0 + 0 + 9 + 8).

It is not an unprimeable number, because it can be changed into a prime (18970097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225793 + ... + 225876.

It is an arithmetic number, because the mean of its divisors is an integer number (2710020).

Almost surely, 2^18970098 is an apocalyptic number.

18970098 is an abundant number, since it is smaller than the sum of its proper divisors (24390222).

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

18970098 is a wasteful number, since it uses less digits than its factorization.

18970098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451681.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 18970098 is about 4355.4675983182. The cubic root of 18970098 is about 266.7001079589.

The spelling of 18970098 in words is "eighteen million, nine hundred seventy thousand, ninety-eight".