18030763 has 4 divisors (see below), whose sum is σ = 18044208. Its totient is φ = 18017320.

The previous prime is 18030739. The next prime is 18030767. The reversal of 18030763 is 36703081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18030763 - 2⁵ = 18030731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18030767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4456 + ... + 7477.

It is an arithmetic number, because the mean of its divisors is an integer number (4511052).

Almost surely, 2^18030763 is an apocalyptic number.

18030763 is a deficient number, since it is larger than the sum of its proper divisors (13445).

18030763 is a wasteful number, since it uses less digits than its factorization.

18030763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13444.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 18030763 is about 4246.2645937341. The cubic root of 18030763 is about 262.2233542023.

The spelling of 18030763 in words is "eighteen million, thirty thousand, seven hundred sixty-three".