163580397 has 8 divisors (see below), whose sum is σ = 225143040. Its totient is φ = 105535680.

The previous prime is 163580383. The next prime is 163580399. The reversal of 163580397 is 793085361.

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

It is not a de Polignac number, because 163580397 - 2⁸ = 163580141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163580399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879372 + ... + 879557.

It is an arithmetic number, because the mean of its divisors is an integer number (28142880).

Almost surely, 2^163580397 is an apocalyptic number.

It is an amenable number.

163580397 is a deficient number, since it is larger than the sum of its proper divisors (61562643).

163580397 is a wasteful number, since it uses less digits than its factorization.

163580397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758963.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 163580397 is about 12789.8552376483. The cubic root of 163580397 is about 546.9031430720.

The spelling of 163580397 in words is "one hundred sixty-three million, five hundred eighty thousand, three hundred ninety-seven".