18057677 has 8 divisors (see below), whose sum is σ = 19863552. Its totient is φ = 16414860.

The previous prime is 18057673. The next prime is 18057709. The reversal of 18057677 is 77675081.

It is not a de Polignac number, because 18057677 - 2² = 18057673 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18057673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5453 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (2482944).

Almost surely, 2^18057677 is an apocalyptic number.

It is an amenable number.

18057677 is a deficient number, since it is larger than the sum of its proper divisors (1805875).

18057677 is an equidigital number, since it uses as much as digits as its factorization.

18057677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600 (or 13578 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 18057677 is about 4249.4325503530. The cubic root of 18057677 is about 262.3537604191.

The spelling of 18057677 in words is "eighteen million, fifty-seven thousand, six hundred seventy-seven".