213915896 has 16 divisors (see below), whose sum is σ = 424686240. Its totient is φ = 100666240.

The previous prime is 213915883. The next prime is 213915899. The reversal of 213915896 is 698519312.

It is a happy number.

It is a super-2 number, since 2×213915896² = 91520021122965632, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213915899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786320 + ... + 786591.

It is an arithmetic number, because the mean of its divisors is an integer number (26542890).

Almost surely, 2^213915896 is an apocalyptic number.

It is an amenable number.

213915896 is a deficient number, since it is larger than the sum of its proper divisors (210770344).

213915896 is a wasteful number, since it uses less digits than its factorization.

213915896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572934 (or 1572930 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 213915896 is about 14625.8639402943. The cubic root of 213915896 is about 598.0640341865.

The spelling of 213915896 in words is "two hundred thirteen million, nine hundred fifteen thousand, eight hundred ninety-six".