18850077 has 20 divisors (see below), whose sum is σ = 29070976. Its totient is φ = 12159720.

The previous prime is 18850067. The next prime is 18850103. The reversal of 18850077 is 77005881.

18850077 is a `hidden beast` number, since 1 + 88 + 500 + 77 = 666.

It is not a de Polignac number, because 18850077 - 2⁴ = 18850061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850067) 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 19 ways as a sum of consecutive naturals, for example, 1243 + ... + 6264.

Almost surely, 2^18850077 is an apocalyptic number.

It is an amenable number.

18850077 is a deficient number, since it is larger than the sum of its proper divisors (10220899).

18850077 is an equidigital number, since it uses as much as digits as its factorization.

18850077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550 (or 7541 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 18850077 is about 4341.6675367881. The cubic root of 18850077 is about 266.1364602182.

The spelling of 18850077 in words is "eighteen million, eight hundred fifty thousand, seventy-seven".