18460497 has 16 divisors (see below), whose sum is σ = 27233280. Its totient is φ = 11029200.

The previous prime is 18460489. The next prime is 18460499. The reversal of 18460497 is 79406481.

It is a happy number.

It is not a de Polignac number, because 18460497 - 2³ = 18460489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18460499) 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 15 ways as a sum of consecutive naturals, for example, 1597 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (1702080).

Almost surely, 2^18460497 is an apocalyptic number.

It is an amenable number.

18460497 is a deficient number, since it is larger than the sum of its proper divisors (8772783).

18460497 is a wasteful number, since it uses less digits than its factorization.

18460497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 18460497 is about 4296.5680490363. The cubic root of 18460497 is about 264.2902426578.

The spelling of 18460497 in words is "eighteen million, four hundred sixty thousand, four hundred ninety-seven".