18876479 has 2 divisors, whose sum is σ = 18876480. Its totient is φ = 18876478.

The previous prime is 18876467. The next prime is 18876499. The reversal of 18876479 is 97467881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18876479 - 2⁴ = 18876463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18876439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9438239 + 9438240.

It is an arithmetic number, because the mean of its divisors is an integer number (9438240).

Almost surely, 2^18876479 is an apocalyptic number.

18876479 is a deficient number, since it is larger than the sum of its proper divisors (1).

18876479 is an equidigital number, since it uses as much as digits as its factorization.

18876479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 50.

The square root of 18876479 is about 4344.7070096843. The cubic root of 18876479 is about 266.2606552342.

It can be divided in two parts, 188 and 76479, that added together give a palindrome (76667).

The spelling of 18876479 in words is "eighteen million, eight hundred seventy-six thousand, four hundred seventy-nine".