342799447 has 2 divisors, whose sum is σ = 342799448. Its totient is φ = 342799446.

The previous prime is 342799427. The next prime is 342799477. The reversal of 342799447 is 744997243.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342799447 is a prime.

It is a super-2 number, since 2×342799447² = 235022921727011618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342799447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342799417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171399723 + 171399724.

It is an arithmetic number, because the mean of its divisors is an integer number (171399724).

Almost surely, 2^342799447 is an apocalyptic number.

342799447 is a deficient number, since it is larger than the sum of its proper divisors (1).

342799447 is an equidigital number, since it uses as much as digits as its factorization.

342799447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 49.

The square root of 342799447 is about 18514.8439636957. The cubic root of 342799447 is about 699.8635427887.

The spelling of 342799447 in words is "three hundred forty-two million, seven hundred ninety-nine thousand, four hundred forty-seven".