163970 has 16 divisors (see below), whose sum is σ = 311040. Its totient is φ = 62064.

The previous prime is 163927. The next prime is 163973. The reversal of 163970 is 79361.

It is a happy number.

163970 is nontrivially palindromic in base 16.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163973) 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, 242 + ... + 621.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2¹⁶³⁹⁷⁰ is an apocalyptic number.

163970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163970 is a deficient number, since it is larger than the sum of its proper divisors (147070).

163970 is a wasteful number, since it uses less digits than its factorization.

163970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 163970 is about 404.9320930724. The cubic root of 163970 is about 54.7336989203.

The spelling of 163970 in words is "one hundred sixty-three thousand, nine hundred seventy".