18472775 has 12 divisors (see below), whose sum is σ = 23119800. Its totient is φ = 14640480.

The previous prime is 18472763. The next prime is 18472781. The reversal of 18472775 is 57727481.

It is not a de Polignac number, because 18472775 - 2⁶ = 18472711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 665 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (1926650).

Almost surely, 2^18472775 is an apocalyptic number.

18472775 is a deficient number, since it is larger than the sum of its proper divisors (4647025).

18472775 is a wasteful number, since it uses less digits than its factorization.

18472775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898 (or 6893 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The square root of 18472775 is about 4297.9966263365. The cubic root of 18472775 is about 264.3488224541.

The spelling of 18472775 in words is "eighteen million, four hundred seventy-two thousand, seven hundred seventy-five".