213676429 has 4 divisors (see below), whose sum is σ = 218222784. Its totient is φ = 209130076.

The previous prime is 213676409. The next prime is 213676453. The reversal of 213676429 is 924676312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213676429 - 2⁷ = 213676301 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213676391 and 213676400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213676409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273107 + ... + 2273200.

It is an arithmetic number, because the mean of its divisors is an integer number (54555696).

Almost surely, 2^213676429 is an apocalyptic number.

It is an amenable number.

213676429 is a deficient number, since it is larger than the sum of its proper divisors (4546355).

213676429 is an equidigital number, since it uses as much as digits as its factorization.

213676429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546354.

The product of its digits is 108864, while the sum is 40.

The square root of 213676429 is about 14617.6752255617. The cubic root of 213676429 is about 597.8407843376.

The spelling of 213676429 in words is "two hundred thirteen million, six hundred seventy-six thousand, four hundred twenty-nine".