214869421 has 8 divisors (see below), whose sum is σ = 231723800. Its totient is φ = 198061632.

The previous prime is 214869379. The next prime is 214869437. The reversal of 214869421 is 124968412.

It can be written as a sum of positive squares in 4 ways, for example, as 123876900 + 90992521 = 11130^2 + 9539^2 .

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 214869421 - 2⁹ = 214868909 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 (214869491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (28965475).

Almost surely, 2^214869421 is an apocalyptic number.

It is an amenable number.

214869421 is a deficient number, since it is larger than the sum of its proper divisors (16854379).

214869421 is a wasteful number, since it uses less digits than its factorization.

214869421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23295.

The product of its digits is 27648, while the sum is 37.

The square root of 214869421 is about 14658.4249153857. The cubic root of 214869421 is about 598.9513358328.

The spelling of 214869421 in words is "two hundred fourteen million, eight hundred sixty-nine thousand, four hundred twenty-one".