18439483 has 2 divisors, whose sum is σ = 18439484. Its totient is φ = 18439482.

The previous prime is 18439471. The next prime is 18439517. The reversal of 18439483 is 38493481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18439483 - 2²¹ = 16342331 is a prime.

It is not a weakly prime, because it can be changed into another prime (18439403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9219741 + 9219742.

It is an arithmetic number, because the mean of its divisors is an integer number (9219742).

Almost surely, 2^18439483 is an apocalyptic number.

18439483 is a deficient number, since it is larger than the sum of its proper divisors (1).

18439483 is an equidigital number, since it uses as much as digits as its factorization.

18439483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 18439483 is about 4294.1219125684. The cubic root of 18439483 is about 264.1899220682.

The spelling of 18439483 in words is "eighteen million, four hundred thirty-nine thousand, four hundred eighty-three".