214896391 has 4 divisors (see below), whose sum is σ = 214927000. Its totient is φ = 214865784.

The previous prime is 214896389. The next prime is 214896449. The reversal of 214896391 is 193698412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 214896391 - 2¹ = 214896389 is a prime.

It is a Duffinian number.

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 (214896091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060 + ... + 20758.

It is an arithmetic number, because the mean of its divisors is an integer number (53731750).

Almost surely, 2^214896391 is an apocalyptic number.

214896391 is a deficient number, since it is larger than the sum of its proper divisors (30609).

214896391 is a wasteful number, since it uses less digits than its factorization.

214896391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30608.

The product of its digits is 93312, while the sum is 43.

The square root of 214896391 is about 14659.3448352919. The cubic root of 214896391 is about 598.9763945276.

The spelling of 214896391 in words is "two hundred fourteen million, eight hundred ninety-six thousand, three hundred ninety-one".