347878906 has 8 divisors (see below), whose sum is σ = 523744704. Its totient is φ = 173297340.

The previous prime is 347878897. The next prime is 347878907. The reversal of 347878906 is 609878743.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (347878907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320380 + ... + 321463.

It is an arithmetic number, because the mean of its divisors is an integer number (65468088).

Almost surely, 2^347878906 is an apocalyptic number.

347878906 is a deficient number, since it is larger than the sum of its proper divisors (175865798).

347878906 is a wasteful number, since it uses less digits than its factorization.

347878906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642116.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 347878906 is about 18651.5121638971. The cubic root of 347878906 is about 703.3033702161.

The spelling of 347878906 in words is "three hundred forty-seven million, eight hundred seventy-eight thousand, nine hundred six".