163376397 has 6 divisors (see below), whose sum is σ = 235988142. Its totient is φ = 108917592.

The previous prime is 163376363. The next prime is 163376399. The reversal of 163376397 is 793673361.

163376397 is a `hidden beast` number, since 1 + 6 + 3 + 3 + 7 + 639 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 141276996 + 22099401 = 11886^2 + 4701^2 .

It is not a de Polignac number, because 163376397 - 2⁶ = 163376333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163376399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9076458 + ... + 9076475.

It is an arithmetic number, because the mean of its divisors is an integer number (39331357).

Almost surely, 2^163376397 is an apocalyptic number.

It is an amenable number.

163376397 is a deficient number, since it is larger than the sum of its proper divisors (72611745).

163376397 is a wasteful number, since it uses less digits than its factorization.

163376397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18152939 (or 18152936 counting only the distinct ones).

The product of its digits is 428652, while the sum is 45.

The square root of 163376397 is about 12781.8776789641. The cubic root of 163376397 is about 546.6757021030.

The spelling of 163376397 in words is "one hundred sixty-three million, three hundred seventy-six thousand, three hundred ninety-seven".