18700075 has 6 divisors (see below), whose sum is σ = 23188124. Its totient is φ = 14960040.

The previous prime is 18700067. The next prime is 18700079. The reversal of 18700075 is 57000781.

It is a happy number.

It is not a de Polignac number, because 18700075 - 2³ = 18700067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18700079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373977 + ... + 374026.

Almost surely, 2^18700075 is an apocalyptic number.

18700075 is a deficient number, since it is larger than the sum of its proper divisors (4488049).

18700075 is an equidigital number, since it uses as much as digits as its factorization.

18700075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748013 (or 748008 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 18700075 is about 4324.3583339034. The cubic root of 18700075 is about 265.4286405777.

The spelling of 18700075 in words is "eighteen million, seven hundred thousand, seventy-five".