214223477 has 16 divisors (see below), whose sum is σ = 246541680. Its totient is φ = 184384512.

The previous prime is 214223453. The next prime is 214223489. The reversal of 214223477 is 774322412.

214223477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4813636 + 209409841 = 2194^2 + 14471^2 .

It is not a de Polignac number, because 214223477 - 2⁶ = 214223413 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 (214223407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19643 + ... + 28535.

It is an arithmetic number, because the mean of its divisors is an integer number (15408855).

Almost surely, 2^214223477 is an apocalyptic number.

It is an amenable number.

214223477 is a deficient number, since it is larger than the sum of its proper divisors (32318203).

214223477 is a wasteful number, since it uses less digits than its factorization.

214223477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9032.

The product of its digits is 18816, while the sum is 32.

The square root of 214223477 is about 14636.3751318419. The cubic root of 214223477 is about 598.3505409262.

Adding to 214223477 its reverse (774322412), we get a palindrome (988545889).

The spelling of 214223477 in words is "two hundred fourteen million, two hundred twenty-three thousand, four hundred seventy-seven".