18248479 has 2 divisors, whose sum is σ = 18248480. Its totient is φ = 18248478.

The previous prime is 18248473. The next prime is 18248507. The reversal of 18248479 is 97484281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18248479 - 2¹⁵ = 18215711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18248473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9124239 + 9124240.

It is an arithmetic number, because the mean of its divisors is an integer number (9124240).

Almost surely, 2^18248479 is an apocalyptic number.

18248479 is a deficient number, since it is larger than the sum of its proper divisors (1).

18248479 is an equidigital number, since it uses as much as digits as its factorization.

18248479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 18248479 is about 4271.8238493646. The cubic root of 18248479 is about 263.2745570186.

The spelling of 18248479 in words is "eighteen million, two hundred forty-eight thousand, four hundred seventy-nine".