213992 has 16 divisors (see below), whose sum is σ = 419040. Its totient is φ = 102256.

The previous prime is 213989. The next prime is 214003. The reversal of 213992 is 299312.

213992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 213992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (26190).

2²¹³⁹⁹² is an apocalyptic number.

It is an amenable number.

213992 is a deficient number, since it is larger than the sum of its proper divisors (205048).

213992 is a wasteful number, since it uses less digits than its factorization.

213992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1188 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 213992 is about 462.5926934140. The cubic root of 213992 is about 59.8134949391.

The spelling of 213992 in words is "two hundred thirteen thousand, nine hundred ninety-two".