213429487 has 4 divisors (see below), whose sum is σ = 213494616. Its totient is φ = 213364360.

The previous prime is 213429421. The next prime is 213429499. The reversal of 213429487 is 784924312.

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

It is a cyclic number.

It is not a de Polignac number, because 213429487 - 2¹¹ = 213427439 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (213429187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27373 + ... + 34294.

It is an arithmetic number, because the mean of its divisors is an integer number (53373654).

Almost surely, 2^213429487 is an apocalyptic number.

213429487 is a deficient number, since it is larger than the sum of its proper divisors (65129).

213429487 is an equidigital number, since it uses as much as digits as its factorization.

213429487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65128.

The product of its digits is 96768, while the sum is 40.

The square root of 213429487 is about 14609.2260917545. The cubic root of 213429487 is about 597.6103909525.

The spelling of 213429487 in words is "two hundred thirteen million, four hundred twenty-nine thousand, four hundred eighty-seven".