349769787 has 4 divisors (see below), whose sum is σ = 466359720. Its totient is φ = 233179856.

The previous prime is 349769779. The next prime is 349769857. The reversal of 349769787 is 787967943.

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

It is a cyclic number.

It is not a de Polignac number, because 349769787 - 2³ = 349769779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349769787.

It is not an unprimeable number, because it can be changed into a prime (349769587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58294962 + ... + 58294967.

It is an arithmetic number, because the mean of its divisors is an integer number (116589930).

Almost surely, 2^349769787 is an apocalyptic number.

349769787 is a deficient number, since it is larger than the sum of its proper divisors (116589933).

349769787 is a wasteful number, since it uses less digits than its factorization.

349769787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116589932.

The product of its digits is 16003008, while the sum is 60.

The square root of 349769787 is about 18702.1332205714. The cubic root of 349769787 is about 704.5753269569.

The spelling of 349769787 in words is "three hundred forty-nine million, seven hundred sixty-nine thousand, seven hundred eighty-seven".