213407471 has 2 divisors, whose sum is σ = 213407472. Its totient is φ = 213407470.

The previous prime is 213407461. The next prime is 213407473. The reversal of 213407471 is 174704312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213407471 - 2⁶ = 213407407 is a prime.

It is a super-3 number, since 3×213407471³ (a number of 26 digits) contains 333 as substring.

Together with 213407473, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 213407471 parts by 20659 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213407473) 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 as a sum of consecutive naturals, namely, 106703735 + 106703736.

It is an arithmetic number, because the mean of its divisors is an integer number (106703736).

Almost surely, 2^213407471 is an apocalyptic number.

213407471 is a deficient number, since it is larger than the sum of its proper divisors (1).

213407471 is an equidigital number, since it uses as much as digits as its factorization.

213407471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 213407471 is about 14608.4725758719. The cubic root of 213407471 is about 597.5898417101.

The spelling of 213407471 in words is "two hundred thirteen million, four hundred seven thousand, four hundred seventy-one".