342989527 has 2 divisors, whose sum is σ = 342989528. Its totient is φ = 342989526.

The previous prime is 342989489. The next prime is 342989557. The reversal of 342989527 is 725989243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342989527 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 (342989557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171494763 + 171494764.

It is an arithmetic number, because the mean of its divisors is an integer number (171494764).

Almost surely, 2^342989527 is an apocalyptic number.

342989527 is a deficient number, since it is larger than the sum of its proper divisors (1).

342989527 is an equidigital number, since it uses as much as digits as its factorization.

342989527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 342989527 is about 18519.9764308705. The cubic root of 342989527 is about 699.9928754377.

The spelling of 342989527 in words is "three hundred forty-two million, nine hundred eighty-nine thousand, five hundred twenty-seven".