349492279 has 2 divisors, whose sum is σ = 349492280. Its totient is φ = 349492278.

The previous prime is 349492277. The next prime is 349492321. The reversal of 349492279 is 972294943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349492279 - 2¹ = 349492277 is a prime.

It is a super-2 number, since 2×349492279² = 244289706161227682, which contains 22 as substring.

Together with 349492277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349492277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174746139 + 174746140.

It is an arithmetic number, because the mean of its divisors is an integer number (174746140).

Almost surely, 2^349492279 is an apocalyptic number.

349492279 is a deficient number, since it is larger than the sum of its proper divisors (1).

349492279 is an equidigital number, since it uses as much as digits as its factorization.

349492279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 349492279 is about 18694.7125947419. The cubic root of 349492279 is about 704.3889405298.

The spelling of 349492279 in words is "three hundred forty-nine million, four hundred ninety-two thousand, two hundred seventy-nine".