349842973 has 2 divisors, whose sum is σ = 349842974. Its totient is φ = 349842972.

The previous prime is 349842959. The next prime is 349842989. The reversal of 349842973 is 379248943.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346071609 + 3771364 = 18603^2 + 1942^2 .

It is a cyclic number.

It is not a de Polignac number, because 349842973 - 2⁹ = 349842461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349842373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174921486 + 174921487.

It is an arithmetic number, because the mean of its divisors is an integer number (174921487).

Almost surely, 2^349842973 is an apocalyptic number.

It is an amenable number.

349842973 is a deficient number, since it is larger than the sum of its proper divisors (1).

349842973 is an equidigital number, since it uses as much as digits as its factorization.

349842973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 349842973 is about 18704.0897399473. The cubic root of 349842973 is about 704.6244654243.

The spelling of 349842973 in words is "three hundred forty-nine million, eight hundred forty-two thousand, nine hundred seventy-three".