18435479 has 2 divisors, whose sum is σ = 18435480. Its totient is φ = 18435478.

The previous prime is 18435451. The next prime is 18435523. The reversal of 18435479 is 97453481.

It is a weak prime.

It is an emirp because it is prime and its reverse (97453481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18435479 - 2⁸ = 18435223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18435409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217739 + 9217740.

It is an arithmetic number, because the mean of its divisors is an integer number (9217740).

Almost surely, 2^18435479 is an apocalyptic number.

18435479 is a deficient number, since it is larger than the sum of its proper divisors (1).

18435479 is an equidigital number, since it uses as much as digits as its factorization.

18435479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 18435479 is about 4293.6556685417. The cubic root of 18435479 is about 264.1707983755.

The spelling of 18435479 in words is "eighteen million, four hundred thirty-five thousand, four hundred seventy-nine".