213844007 has 16 divisors (see below), whose sum is σ = 233587200. Its totient is φ = 194594400.

The previous prime is 213843991. The next prime is 213844009. The reversal of 213844007 is 700448312.

It is not a de Polignac number, because 213844007 - 2⁴ = 213843991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213844009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338582 + ... + 339212.

It is an arithmetic number, because the mean of its divisors is an integer number (14599200).

Almost surely, 2^213844007 is an apocalyptic number.

213844007 is a deficient number, since it is larger than the sum of its proper divisors (19743193).

213844007 is a wasteful number, since it uses less digits than its factorization.

213844007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 213844007 is about 14623.4061353708. The cubic root of 213844007 is about 597.9970311520.

The spelling of 213844007 in words is "two hundred thirteen million, eight hundred forty-four thousand, seven".