342689539 has 2 divisors, whose sum is σ = 342689540. Its totient is φ = 342689538.

The previous prime is 342689513. The next prime is 342689551. The reversal of 342689539 is 935986243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342689539 - 2⁵ = 342689507 is a prime.

It is a super-2 number, since 2×342689539² = 234872240280065042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 342689492 and 342689501.

It is not a weakly prime, because it can be changed into another prime (342689509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171344769 + 171344770.

It is an arithmetic number, because the mean of its divisors is an integer number (171344770).

Almost surely, 2^342689539 is an apocalyptic number.

342689539 is a deficient number, since it is larger than the sum of its proper divisors (1).

342689539 is an equidigital number, since it uses as much as digits as its factorization.

342689539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 342689539 is about 18511.8756208008. The cubic root of 342689539 is about 699.7887382879.

The spelling of 342689539 in words is "three hundred forty-two million, six hundred eighty-nine thousand, five hundred thirty-nine".