18797012 has 12 divisors (see below), whose sum is σ = 35425236. Its totient is φ = 8675520.

The previous prime is 18796993. The next prime is 18797021. The reversal of 18797012 is 21079781.

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 15649936 = 1774^2 + 3956^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 180689 + ... + 180792.

It is an arithmetic number, because the mean of its divisors is an integer number (2952103).

Almost surely, 2^18797012 is an apocalyptic number.

It is an amenable number.

18797012 is a deficient number, since it is larger than the sum of its proper divisors (16628224).

18797012 is a wasteful number, since it uses less digits than its factorization.

18797012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361498 (or 361496 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 18797012 is about 4335.5520986375. The cubic root of 18797012 is about 265.8864912273.

The spelling of 18797012 in words is "eighteen million, seven hundred ninety-seven thousand, twelve".