213694726 has 16 divisors (see below), whose sum is σ = 387883296. Its totient is φ = 86196096.

The previous prime is 213694711. The next prime is 213694751. The reversal of 213694726 is 627496312.

It is a happy number.

213694726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448701 + ... + 449176.

It is an arithmetic number, because the mean of its divisors is an integer number (24242706).

Almost surely, 2^213694726 is an apocalyptic number.

213694726 is a deficient number, since it is larger than the sum of its proper divisors (174188570).

213694726 is a wasteful number, since it uses less digits than its factorization.

213694726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897903.

The product of its digits is 108864, while the sum is 40.

The square root of 213694726 is about 14618.3010640772. The cubic root of 213694726 is about 597.8578481143.

The spelling of 213694726 in words is "two hundred thirteen million, six hundred ninety-four thousand, seven hundred twenty-six".