206264813 has 8 divisors (see below), whose sum is σ = 210912000. Its totient is φ = 201668688.

The previous prime is 206264803. The next prime is 206264819. The reversal of 206264813 is 318462602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206264813 - 2⁴ = 206264797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206264813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206264819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538 + ... + 20811.

It is an arithmetic number, because the mean of its divisors is an integer number (26364000).

Almost surely, 2^206264813 is an apocalyptic number.

It is an amenable number.

206264813 is a deficient number, since it is larger than the sum of its proper divisors (4647187).

206264813 is a wasteful number, since it uses less digits than its factorization.

206264813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25531.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 206264813 is about 14361.9223295491. The cubic root of 206264813 is about 590.8470195535.

The spelling of 206264813 in words is "two hundred six million, two hundred sixty-four thousand, eight hundred thirteen".