18229763 has 4 divisors (see below), whose sum is σ = 19302120. Its totient is φ = 17157408.

The previous prime is 18229751. The next prime is 18229769. The reversal of 18229763 is 36792281.

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 18229763 - 2⁸ = 18229507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18229769) 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, 536153 + ... + 536186.

It is an arithmetic number, because the mean of its divisors is an integer number (4825530).

Almost surely, 2^18229763 is an apocalyptic number.

18229763 is a deficient number, since it is larger than the sum of its proper divisors (1072357).

18229763 is a wasteful number, since it uses less digits than its factorization.

18229763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072356.

The product of its digits is 36288, while the sum is 38.

The square root of 18229763 is about 4269.6326539879. The cubic root of 18229763 is about 263.1845197040.

The spelling of 18229763 in words is "eighteen million, two hundred twenty-nine thousand, seven hundred sixty-three".