18879467 has 4 divisors (see below), whose sum is σ = 18954936. Its totient is φ = 18804000.

The previous prime is 18879457. The next prime is 18879473. The reversal of 18879467 is 76497881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76497881 = 4271 ⋅17911.

It is a cyclic number.

It is not a de Polignac number, because 18879467 - 2²² = 14685163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18879437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37358 + ... + 37859.

It is an arithmetic number, because the mean of its divisors is an integer number (4738734).

Almost surely, 2^18879467 is an apocalyptic number.

18879467 is a deficient number, since it is larger than the sum of its proper divisors (75469).

18879467 is an equidigital number, since it uses as much as digits as its factorization.

18879467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75468.

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

The square root of 18879467 is about 4345.0508627633. The cubic root of 18879467 is about 266.2747034908.

The spelling of 18879467 in words is "eighteen million, eight hundred seventy-nine thousand, four hundred sixty-seven".