163432387 has 2 divisors, whose sum is σ = 163432388. Its totient is φ = 163432386.

The previous prime is 163432349. The next prime is 163432417. The reversal of 163432387 is 783234361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163432387 - 2⁷ = 163432259 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is equal to p_9156097 and since 163432387 and 9156097 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (163432987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81716193 + 81716194.

It is an arithmetic number, because the mean of its divisors is an integer number (81716194).

Almost surely, 2^163432387 is an apocalyptic number.

163432387 is a deficient number, since it is larger than the sum of its proper divisors (1).

163432387 is an equidigital number, since it uses as much as digits as its factorization.

163432387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 163432387 is about 12784.0677016355. The cubic root of 163432387 is about 546.7381445717.

The spelling of 163432387 in words is "one hundred sixty-three million, four hundred thirty-two thousand, three hundred eighty-seven".