346397893 has 2 divisors, whose sum is σ = 346397894. Its totient is φ = 346397892.

The previous prime is 346397867. The next prime is 346397903. The reversal of 346397893 is 398793643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236944449 + 109453444 = 15393^2 + 10462^2 .

It is an emirp because it is prime and its reverse (398793643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 346397893 - 2⁵ = 346397861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 346397893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346397693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173198946 + 173198947.

It is an arithmetic number, because the mean of its divisors is an integer number (173198947).

Almost surely, 2^346397893 is an apocalyptic number.

It is an amenable number.

346397893 is a deficient number, since it is larger than the sum of its proper divisors (1).

346397893 is an equidigital number, since it uses as much as digits as its factorization.

346397893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 346397893 is about 18611.7675947235. The cubic root of 346397893 is about 702.3039007198.

The spelling of 346397893 in words is "three hundred forty-six million, three hundred ninety-seven thousand, eight hundred ninety-three".