163297693 has 16 divisors (see below), whose sum is σ = 182327040. Its totient is φ = 145290816.

The previous prime is 163297681. The next prime is 163297697. The reversal of 163297693 is 396792361.

It is a cyclic number.

It is not a de Polignac number, because 163297693 - 2¹⁷ = 163166621 is a prime.

It is a super-2 number, since 2×163297693² = 53332273078244498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163297697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38943 + ... + 42931.

It is an arithmetic number, because the mean of its divisors is an integer number (11395440).

Almost surely, 2^163297693 is an apocalyptic number.

163297693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163297693 is a deficient number, since it is larger than the sum of its proper divisors (19029347).

163297693 is a wasteful number, since it uses less digits than its factorization.

163297693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116.

The product of its digits is 367416, while the sum is 46.

The square root of 163297693 is about 12778.7985742009. The cubic root of 163297693 is about 546.5879038733.

The spelling of 163297693 in words is "one hundred sixty-three million, two hundred ninety-seven thousand, six hundred ninety-three".