163497967 has 2 divisors, whose sum is σ = 163497968. Its totient is φ = 163497966.

The previous prime is 163497949. The next prime is 163497973. The reversal of 163497967 is 769794361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163497967 - 2²³ = 155109359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163497767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81748983 + 81748984.

It is an arithmetic number, because the mean of its divisors is an integer number (81748984).

Almost surely, 2^163497967 is an apocalyptic number.

163497967 is a deficient number, since it is larger than the sum of its proper divisors (1).

163497967 is an equidigital number, since it uses as much as digits as its factorization.

163497967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 52.

The square root of 163497967 is about 12786.6323557065. The cubic root of 163497967 is about 546.8112640911.

The spelling of 163497967 in words is "one hundred sixty-three million, four hundred ninety-seven thousand, nine hundred sixty-seven".