3447703378 has 16 divisors (see below), whose sum is σ = 6101005824. Its totient is φ = 1429922880.

The previous prime is 3447703339. The next prime is 3447703397. The reversal of 3447703378 is 8733077443.

It is a super-2 number, since 2×3447703378² = 23773317165345221768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971575 + ... + 3972442.

It is an arithmetic number, because the mean of its divisors is an integer number (381312864).

Almost surely, 2^3447703378 is an apocalyptic number.

3447703378 is a deficient number, since it is larger than the sum of its proper divisors (2653302446).

3447703378 is a wasteful number, since it uses less digits than its factorization.

3447703378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944057.

The product of its (nonzero) digits is 1185408, while the sum is 46.

The square root of 3447703378 is about 58717.1472229365. The cubic root of 3447703378 is about 1510.6944422134.

The spelling of 3447703378 in words is "three billion, four hundred forty-seven million, seven hundred three thousand, three hundred seventy-eight".