270870389 has 2 divisors, whose sum is σ = 270870390. Its totient is φ = 270870388.

The previous prime is 270870359. The next prime is 270870407. The reversal of 270870389 is 983078072.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229371025 + 41499364 = 15145^2 + 6442^2 .

It is a cyclic number.

It is not a de Polignac number, because 270870389 - 2⁸ = 270870133 is a prime.

It is a super-2 number, since 2×270870389² = 146741535274022642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270870329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135435194 + 135435195.

It is an arithmetic number, because the mean of its divisors is an integer number (135435195).

Almost surely, 2^270870389 is an apocalyptic number.

It is an amenable number.

270870389 is a deficient number, since it is larger than the sum of its proper divisors (1).

270870389 is an equidigital number, since it uses as much as digits as its factorization.

270870389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 270870389 is about 16458.1405085751. The cubic root of 270870389 is about 647.0241791785.

The spelling of 270870389 in words is "two hundred seventy million, eight hundred seventy thousand, three hundred eighty-nine".