18372463 has 2 divisors, whose sum is σ = 18372464. Its totient is φ = 18372462.

The previous prime is 18372451. The next prime is 18372511. The reversal of 18372463 is 36427381.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (36427381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18372463 - 2¹³ = 18364271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18372433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9186231 + 9186232.

It is an arithmetic number, because the mean of its divisors is an integer number (9186232).

Almost surely, 2^18372463 is an apocalyptic number.

18372463 is a deficient number, since it is larger than the sum of its proper divisors (1).

18372463 is an equidigital number, since it uses as much as digits as its factorization.

18372463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 18372463 is about 4286.3111179661. The cubic root of 18372463 is about 263.8694592987.

The spelling of 18372463 in words is "eighteen million, three hundred seventy-two thousand, four hundred sixty-three".