349362731 has 2 divisors, whose sum is σ = 349362732. Its totient is φ = 349362730.

The previous prime is 349362719. The next prime is 349362757. The reversal of 349362731 is 137263943.

It is a weak prime.

It is an emirp because it is prime and its reverse (137263943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349362731 - 2¹⁰ = 349361707 is a prime.

It is a super-2 number, since 2×349362731² = 244108635623556722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349361731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174681365 + 174681366.

It is an arithmetic number, because the mean of its divisors is an integer number (174681366).

Almost surely, 2^349362731 is an apocalyptic number.

349362731 is a deficient number, since it is larger than the sum of its proper divisors (1).

349362731 is an equidigital number, since it uses as much as digits as its factorization.

349362731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 38.

The square root of 349362731 is about 18691.2474436566. The cubic root of 349362731 is about 704.3018966844.

The spelling of 349362731 in words is "three hundred forty-nine million, three hundred sixty-two thousand, seven hundred thirty-one".