213423417 has 40 divisors (see below), whose sum is σ = 336050880. Its totient is φ = 134719200.

The previous prime is 213423407. The next prime is 213423443. The reversal of 213423417 is 714324312.

It is a happy number.

213423417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213423417 - 2⁴ = 213423401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (213423407) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 202542 + ... + 203592.

It is an arithmetic number, because the mean of its divisors is an integer number (8401272).

Almost surely, 2^213423417 is an apocalyptic number.

213423417 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

213423417 is a deficient number, since it is larger than the sum of its proper divisors (122627463).

213423417 is a wasteful number, since it uses less digits than its factorization.

213423417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1186 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 213423417 is about 14609.0183448444. The cubic root of 213423417 is about 597.6047254913.

Adding to 213423417 its reverse (714324312), we get a palindrome (927747729).

The spelling of 213423417 in words is "two hundred thirteen million, four hundred twenty-three thousand, four hundred seventeen".