213290807 has 4 divisors (see below), whose sum is σ = 213486336. Its totient is φ = 213095280.

The previous prime is 213290801. The next prime is 213290813. The reversal of 213290807 is 708092312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (213290801) and next prime (213290813).

It is a cyclic number.

It is not a de Polignac number, because 213290807 - 2²⁰ = 212242231 is a prime.

It is a super-2 number, since 2×213290807² = 90985936701422498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213290801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96119 + ... + 98312.

It is an arithmetic number, because the mean of its divisors is an integer number (53371584).

Almost surely, 2^213290807 is an apocalyptic number.

213290807 is a deficient number, since it is larger than the sum of its proper divisors (195529).

213290807 is a wasteful number, since it uses less digits than its factorization.

213290807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195528.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 213290807 is about 14604.4790047437. The cubic root of 213290807 is about 597.4809265458.

The spelling of 213290807 in words is "two hundred thirteen million, two hundred ninety thousand, eight hundred seven".