349994737 has 4 divisors (see below), whose sum is σ = 358531236. Its totient is φ = 341458240.

The previous prime is 349994699. The next prime is 349994747. The reversal of 349994737 is 737499943.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115261696 + 234733041 = 10736^2 + 15321^2 .

It is a cyclic number.

It is not a de Polignac number, because 349994737 - 2⁷ = 349994609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349994747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4268188 + ... + 4268269.

It is an arithmetic number, because the mean of its divisors is an integer number (89632809).

Almost surely, 2^349994737 is an apocalyptic number.

It is an amenable number.

349994737 is a deficient number, since it is larger than the sum of its proper divisors (8536499).

349994737 is an equidigital number, since it uses as much as digits as its factorization.

349994737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8536498.

The product of its digits is 5143824, while the sum is 55.

The square root of 349994737 is about 18708.1462737493. The cubic root of 349994737 is about 704.7263408142.

The spelling of 349994737 in words is "three hundred forty-nine million, nine hundred ninety-four thousand, seven hundred thirty-seven".