188920463 has 2 divisors, whose sum is σ = 188920464. Its totient is φ = 188920462.

The previous prime is 188920429. The next prime is 188920493. The reversal of 188920463 is 364029881.

188920463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (364029881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188920463 - 2²² = 184726159 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 188920463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188920493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94460231 + 94460232.

It is an arithmetic number, because the mean of its divisors is an integer number (94460232).

Almost surely, 2^188920463 is an apocalyptic number.

188920463 is a deficient number, since it is larger than the sum of its proper divisors (1).

188920463 is an equidigital number, since it uses as much as digits as its factorization.

188920463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 188920463 is about 13744.8340477432. The cubic root of 188920463 is about 573.7988415220.

The spelling of 188920463 in words is "one hundred eighty-eight million, nine hundred twenty thousand, four hundred sixty-three".