2163958 has 4 divisors (see below), whose sum is σ = 3245940. Its totient is φ = 1081978.

The previous prime is 2163949. The next prime is 2163971. The reversal of 2163958 is 8593612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540988 + ... + 540991.

It is an arithmetic number, because the mean of its divisors is an integer number (811485).

2^2163958 is an apocalyptic number.

2163958 is a deficient number, since it is larger than the sum of its proper divisors (1081982).

2163958 is a wasteful number, since it uses less digits than its factorization.

2163958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081981.

The product of its digits is 12960, while the sum is 34.

The square root of 2163958 is about 1471.0397683272. The cubic root of 2163958 is about 129.3449892661.

The spelling of 2163958 in words is "two million, one hundred sixty-three thousand, nine hundred fifty-eight".