349814057 has 2 divisors, whose sum is σ = 349814058. Its totient is φ = 349814056.

The previous prime is 349814053. The next prime is 349814063. The reversal of 349814057 is 750418943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346369321 + 3444736 = 18611^2 + 1856^2 .

It is an emirp because it is prime and its reverse (750418943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349814057 - 2² = 349814053 is a prime.

It is not a weakly prime, because it can be changed into another prime (349814051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174907028 + 174907029.

It is an arithmetic number, because the mean of its divisors is an integer number (174907029).

Almost surely, 2^349814057 is an apocalyptic number.

It is an amenable number.

349814057 is a deficient number, since it is larger than the sum of its proper divisors (1).

349814057 is an equidigital number, since it uses as much as digits as its factorization.

349814057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 349814057 is about 18703.3167379478. The cubic root of 349814057 is about 704.6050514929.

The spelling of 349814057 in words is "three hundred forty-nine million, eight hundred fourteen thousand, fifty-seven".