213854479 has 2 divisors, whose sum is σ = 213854480. Its totient is φ = 213854478.

The previous prime is 213854467. The next prime is 213854489. The reversal of 213854479 is 974458312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213854479 - 2²⁷ = 79636751 is a prime.

It is a super-2 number, since 2×213854479² = 91467476376722882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213854489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106927239 + 106927240.

It is an arithmetic number, because the mean of its divisors is an integer number (106927240).

Almost surely, 2^213854479 is an apocalyptic number.

213854479 is a deficient number, since it is larger than the sum of its proper divisors (1).

213854479 is an equidigital number, since it uses as much as digits as its factorization.

213854479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 213854479 is about 14623.7641871031. The cubic root of 213854479 is about 598.0067923525.

The spelling of 213854479 in words is "two hundred thirteen million, eight hundred fifty-four thousand, four hundred seventy-nine".