213432827 has 2 divisors, whose sum is σ = 213432828. Its totient is φ = 213432826.

The previous prime is 213432823. The next prime is 213432829. The reversal of 213432827 is 728234312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213432827 - 2² = 213432823 is a prime.

Together with 213432829, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213432793 and 213432802.

It is not a weakly prime, because it can be changed into another prime (213432823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106716413 + 106716414.

It is an arithmetic number, because the mean of its divisors is an integer number (106716414).

Almost surely, 2^213432827 is an apocalyptic number.

213432827 is a deficient number, since it is larger than the sum of its proper divisors (1).

213432827 is an equidigital number, since it uses as much as digits as its factorization.

213432827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 213432827 is about 14609.3404026328. The cubic root of 213432827 is about 597.6135083104.

The spelling of 213432827 in words is "two hundred thirteen million, four hundred thirty-two thousand, eight hundred twenty-seven".