162993843 has 32 divisors (see below), whose sum is σ = 249395520. Its totient is φ = 105131520.

The previous prime is 162993839. The next prime is 162993851. The reversal of 162993843 is 348399261.

It is a happy number.

It is not a de Polignac number, because 162993843 - 2² = 162993839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162993863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240421 + ... + 241097.

It is an arithmetic number, because the mean of its divisors is an integer number (7793610).

Almost surely, 2^162993843 is an apocalyptic number.

162993843 is a deficient number, since it is larger than the sum of its proper divisors (86401677).

162993843 is a wasteful number, since it uses less digits than its factorization.

162993843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 958 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 162993843 is about 12766.9042057971. The cubic root of 162993843 is about 546.2486791367.

The spelling of 162993843 in words is "one hundred sixty-two million, nine hundred ninety-three thousand, eight hundred forty-three".