213700407 has 16 divisors (see below), whose sum is σ = 287790720. Its totient is φ = 141044832.

The previous prime is 213700397. The next prime is 213700427. The reversal of 213700407 is 704007312.

It is not a de Polignac number, because 213700407 - 2¹⁸ = 213438263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213700427) 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, 267733 + ... + 268529.

It is an arithmetic number, because the mean of its divisors is an integer number (17986920).

Almost surely, 2^213700407 is an apocalyptic number.

213700407 is a deficient number, since it is larger than the sum of its proper divisors (74090313).

213700407 is a wasteful number, since it uses less digits than its factorization.

213700407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 213700407 is about 14618.4953740116. The cubic root of 213700407 is about 597.8631460151.

Adding to 213700407 its reverse (704007312), we get a palindrome (917707719).

The spelling of 213700407 in words is "two hundred thirteen million, seven hundred thousand, four hundred seven".