214894621 has 4 divisors (see below), whose sum is σ = 215091612. Its totient is φ = 214697632.

The previous prime is 214894601. The next prime is 214894633. The reversal of 214894621 is 126498412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155002500 + 59892121 = 12450^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 214894621 - 2¹³ = 214886429 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 (214894601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96850 + ... + 99043.

It is an arithmetic number, because the mean of its divisors is an integer number (53772903).

Almost surely, 2^214894621 is an apocalyptic number.

It is an amenable number.

214894621 is a deficient number, since it is larger than the sum of its proper divisors (196991).

214894621 is a wasteful number, since it uses less digits than its factorization.

214894621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196990.

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

The square root of 214894621 is about 14659.2844641203. The cubic root of 214894621 is about 598.9747500279.

It can be divided in two parts, 2148 and 94621, that added together give a palindrome (96769).

The spelling of 214894621 in words is "two hundred fourteen million, eight hundred ninety-four thousand, six hundred twenty-one".