18876463 has 2 divisors, whose sum is σ = 18876464. Its totient is φ = 18876462.

The previous prime is 18876461. The next prime is 18876467. The reversal of 18876463 is 36467881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18876463 - 2¹ = 18876461 is a prime.

Together with 18876461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18876461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9438231 + 9438232.

It is an arithmetic number, because the mean of its divisors is an integer number (9438232).

Almost surely, 2^18876463 is an apocalyptic number.

18876463 is a deficient number, since it is larger than the sum of its proper divisors (1).

18876463 is an equidigital number, since it uses as much as digits as its factorization.

18876463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 18876463 is about 4344.7051683630. The cubic root of 18876463 is about 266.2605800053.

The spelling of 18876463 in words is "eighteen million, eight hundred seventy-six thousand, four hundred sixty-three".