163467997 has 8 divisors (see below), whose sum is σ = 203804352. Its totient is φ = 127377600.

The previous prime is 163467979. The next prime is 163468003. The reversal of 163467997 is 799764361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-163467997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163467977) 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 in 7 ways as a sum of consecutive naturals, for example, 1061404 + ... + 1061557.

It is an arithmetic number, because the mean of its divisors is an integer number (25475544).

Almost surely, 2^163467997 is an apocalyptic number.

It is an amenable number.

163467997 is a deficient number, since it is larger than the sum of its proper divisors (40336355).

163467997 is a wasteful number, since it uses less digits than its factorization.

163467997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122979.

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

The square root of 163467997 is about 12785.4603749728. The cubic root of 163467997 is about 546.7778509640. Note that the first 3 decimals are identical.

The spelling of 163467997 in words is "one hundred sixty-three million, four hundred sixty-seven thousand, nine hundred ninety-seven".