349751971 has 2 divisors, whose sum is σ = 349751972. Its totient is φ = 349751970.

The previous prime is 349751947. The next prime is 349752041. The reversal of 349751971 is 179157943.

It is a weak prime.

It is an emirp because it is prime and its reverse (179157943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349751971 - 2¹⁵ = 349719203 is a prime.

It is not a weakly prime, because it can be changed into another prime (349751071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174875985 + 174875986.

It is an arithmetic number, because the mean of its divisors is an integer number (174875986).

Almost surely, 2^349751971 is an apocalyptic number.

349751971 is a deficient number, since it is larger than the sum of its proper divisors (1).

349751971 is an equidigital number, since it uses as much as digits as its factorization.

349751971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 46.

The square root of 349751971 is about 18701.6569052050. The cubic root of 349751971 is about 704.5633639195.

The spelling of 349751971 in words is "three hundred forty-nine million, seven hundred fifty-one thousand, nine hundred seventy-one".