214659391 has 8 divisors (see below), whose sum is σ = 237168864. Its totient is φ = 193248000.

The previous prime is 214659343. The next prime is 214659413. The reversal of 214659391 is 193956412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214659391 - 2¹⁵ = 214626623 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 (214659191) 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 7 ways as a sum of consecutive naturals, for example, 274110 + ... + 274891.

It is an arithmetic number, because the mean of its divisors is an integer number (29646108).

Almost surely, 2^214659391 is an apocalyptic number.

214659391 is a deficient number, since it is larger than the sum of its proper divisors (22509473).

214659391 is a wasteful number, since it uses less digits than its factorization.

214659391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549041.

The product of its digits is 58320, while the sum is 40.

The square root of 214659391 is about 14651.2590243979. The cubic root of 214659391 is about 598.7561184167.

The spelling of 214659391 in words is "two hundred fourteen million, six hundred fifty-nine thousand, three hundred ninety-one".