342979669 has 2 divisors, whose sum is σ = 342979670. Its totient is φ = 342979668.

The previous prime is 342979661. The next prime is 342979783. The reversal of 342979669 is 966979243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342435025 + 544644 = 18505^2 + 738^2 .

It is a cyclic number.

It is not a de Polignac number, because 342979669 - 2³ = 342979661 is a prime.

It is a super-2 number, since 2×342979669² = 235270106694699122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342979661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171489834 + 171489835.

It is an arithmetic number, because the mean of its divisors is an integer number (171489835).

Almost surely, 2^342979669 is an apocalyptic number.

It is an amenable number.

342979669 is a deficient number, since it is larger than the sum of its proper divisors (1).

342979669 is an equidigital number, since it uses as much as digits as its factorization.

342979669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 55.

The square root of 342979669 is about 18519.7102839110. The cubic root of 342979669 is about 699.9861691145.

The spelling of 342979669 in words is "three hundred forty-two million, nine hundred seventy-nine thousand, six hundred sixty-nine".