213707715 has 32 divisors (see below), whose sum is σ = 368981760. Its totient is φ = 104996736.

The previous prime is 213707701. The next prime is 213707717. The reversal of 213707715 is 517707312.

It is not a de Polignac number, because 213707715 - 2⁹ = 213707203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213707717) 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 31 ways as a sum of consecutive naturals, for example, 143364 + ... + 144846.

It is an arithmetic number, because the mean of its divisors is an integer number (11530680).

Almost surely, 2^213707715 is an apocalyptic number.

213707715 is a deficient number, since it is larger than the sum of its proper divisors (155274045).

213707715 is a wasteful number, since it uses less digits than its factorization.

213707715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 213707715 is about 14618.7453291998. The cubic root of 213707715 is about 597.8699610607.

The spelling of 213707715 in words is "two hundred thirteen million, seven hundred seven thousand, seven hundred fifteen".