18479523 has 8 divisors (see below), whose sum is σ = 25043536. Its totient is φ = 12117600.

The previous prime is 18479521. The next prime is 18479537. The reversal of 18479523 is 32597481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18479523 - 2¹ = 18479521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18479521) 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, 50308 + ... + 50673.

It is an arithmetic number, because the mean of its divisors is an integer number (3130442).

Almost surely, 2^18479523 is an apocalyptic number.

18479523 is a deficient number, since it is larger than the sum of its proper divisors (6564013).

18479523 is a wasteful number, since it uses less digits than its factorization.

18479523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101045.

The product of its digits is 60480, while the sum is 39.

The square root of 18479523 is about 4298.7815715619. The cubic root of 18479523 is about 264.3810069110.

The spelling of 18479523 in words is "eighteen million, four hundred seventy-nine thousand, five hundred twenty-three".