213794023 has 16 divisors (see below), whose sum is σ = 243371520. Its totient is φ = 186558336.

The previous prime is 213793963. The next prime is 213794051. The reversal of 213794023 is 320497312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213794023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213794083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8140 + ... + 22222.

It is an arithmetic number, because the mean of its divisors is an integer number (15210720).

Almost surely, 2^213794023 is an apocalyptic number.

213794023 is a deficient number, since it is larger than the sum of its proper divisors (29577497).

213794023 is a wasteful number, since it uses less digits than its factorization.

213794023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14166.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 213794023 is about 14621.6969945352. The cubic root of 213794023 is about 597.9504354844.

The spelling of 213794023 in words is "two hundred thirteen million, seven hundred ninety-four thousand, twenty-three".