18696573 has 12 divisors (see below), whose sum is σ = 30864288. Its totient is φ = 10683720.

The previous prime is 18696563. The next prime is 18696577. The reversal of 18696573 is 37569681.

It is a happy number.

18696573 is a `hidden beast` number, since 18 + 69 + 6 + 573 = 666.

It is not a de Polignac number, because 18696573 - 2¹⁷ = 18565501 is a prime.

It is a super-5 number, since 5×18696573⁵ (a number of 38 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18696577) 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, 148323 + ... + 148448.

It is an arithmetic number, because the mean of its divisors is an integer number (2572024).

Almost surely, 2^18696573 is an apocalyptic number.

It is an amenable number.

18696573 is a deficient number, since it is larger than the sum of its proper divisors (12167715).

18696573 is a wasteful number, since it uses less digits than its factorization.

18696573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296784 (or 296781 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 18696573 is about 4323.9533993789. The cubic root of 18696573 is about 265.4120704280.

The spelling of 18696573 in words is "eighteen million, six hundred ninety-six thousand, five hundred seventy-three".