213823701 has 108 divisors (see below), whose sum is σ = 412233120. Its totient is φ = 106142400.

The previous prime is 213823667. The next prime is 213823711. The reversal of 213823701 is 107328312.

213823701 is a `hidden beast` number, since 213 + 82 + 370 + 1 = 666.

It is not a de Polignac number, because 213823701 - 2⁷ = 213823573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213823711) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1415976 + ... + 1416126.

Almost surely, 2^213823701 is an apocalyptic number.

213823701 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213823701 is a deficient number, since it is larger than the sum of its proper divisors (198409419).

213823701 is a wasteful number, since it uses less digits than its factorization.

213823701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 213823701 is about 14622.7118209996. The cubic root of 213823701 is about 597.9781025378.

The spelling of 213823701 in words is "two hundred thirteen million, eight hundred twenty-three thousand, seven hundred one".