18499007 has 2 divisors, whose sum is σ = 18499008. Its totient is φ = 18499006.

The previous prime is 18498959. The next prime is 18499031. The reversal of 18499007 is 70099481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18499007 - 2⁶ = 18498943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18499087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9249503 + 9249504.

It is an arithmetic number, because the mean of its divisors is an integer number (9249504).

Almost surely, 2^18499007 is an apocalyptic number.

18499007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18499007 is an equidigital number, since it uses as much as digits as its factorization.

18499007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 18499007 is about 4301.0471980670. The cubic root of 18499007 is about 264.4738915271.

The spelling of 18499007 in words is "eighteen million, four hundred ninety-nine thousand, seven".