349937247 has 16 divisors (see below), whose sum is σ = 513946368. Its totient is φ = 210022080.

The previous prime is 349937243. The next prime is 349937281. The reversal of 349937247 is 742739943.

It is not a de Polignac number, because 349937247 - 2² = 349937243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 349937196 and 349937205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349937243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48078 + ... + 54875.

It is an arithmetic number, because the mean of its divisors is an integer number (32121648).

Almost surely, 2^349937247 is an apocalyptic number.

349937247 is a deficient number, since it is larger than the sum of its proper divisors (164009121).

349937247 is a wasteful number, since it uses less digits than its factorization.

349937247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103070.

The product of its digits is 1143072, while the sum is 48.

The square root of 349937247 is about 18706.6097142160. The cubic root of 349937247 is about 704.6877526760.

The spelling of 349937247 in words is "three hundred forty-nine million, nine hundred thirty-seven thousand, two hundred forty-seven".