18499707 has 12 divisors (see below), whose sum is σ = 26759200. Its totient is φ = 12315888.

The previous prime is 18499699. The next prime is 18499729. The reversal of 18499707 is 70799481.

It is not a de Polignac number, because 18499707 - 2³ = 18499699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18499007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11169 + ... + 12717.

Almost surely, 2^18499707 is an apocalyptic number.

18499707 is a deficient number, since it is larger than the sum of its proper divisors (8259493).

18499707 is a wasteful number, since it uses less digits than its factorization.

18499707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 18499707 is about 4301.1285728283. The cubic root of 18499707 is about 264.4772273708.

The spelling of 18499707 in words is "eighteen million, four hundred ninety-nine thousand, seven hundred seven".