270697391 has 2 divisors, whose sum is σ = 270697392. Its totient is φ = 270697390.

The previous prime is 270697387. The next prime is 270697403. The reversal of 270697391 is 193796072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 270697391 - 2² = 270697387 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270697381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135348695 + 135348696.

It is an arithmetic number, because the mean of its divisors is an integer number (135348696).

Almost surely, 2^270697391 is an apocalyptic number.

270697391 is a deficient number, since it is larger than the sum of its proper divisors (1).

270697391 is an equidigital number, since it uses as much as digits as its factorization.

270697391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 270697391 is about 16452.8839721187. The cubic root of 270697391 is about 646.8864039033.

The spelling of 270697391 in words is "two hundred seventy million, six hundred ninety-seven thousand, three hundred ninety-one".