18467963 has 2 divisors, whose sum is σ = 18467964. Its totient is φ = 18467962.

The previous prime is 18467893. The next prime is 18467989. The reversal of 18467963 is 36976481.

It is a strong prime.

It is an emirp because it is prime and its reverse (36976481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18467963 - 2⁸ = 18467707 is a prime.

It is not a weakly prime, because it can be changed into another prime (18467063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9233981 + 9233982.

It is an arithmetic number, because the mean of its divisors is an integer number (9233982).

Almost surely, 2^18467963 is an apocalyptic number.

18467963 is a deficient number, since it is larger than the sum of its proper divisors (1).

18467963 is an equidigital number, since it uses as much as digits as its factorization.

18467963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 18467963 is about 4297.4367941832. The cubic root of 18467963 is about 264.3258669245.

The spelling of 18467963 in words is "eighteen million, four hundred sixty-seven thousand, nine hundred sixty-three".