3447043378 has 4 divisors (see below), whose sum is σ = 5170565070. Its totient is φ = 1723521688.

The previous prime is 3447043343. The next prime is 3447043381. The reversal of 3447043378 is 8733407443.

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

It can be written as a sum of positive squares in only one way, i.e., 2532404329 + 914639049 = 50323^2 + 30243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861760843 + ... + 861760846.

Almost surely, 2^3447043378 is an apocalyptic number.

3447043378 is a deficient number, since it is larger than the sum of its proper divisors (1723521692).

3447043378 is a wasteful number, since it uses less digits than its factorization.

3447043378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723521691.

The product of its (nonzero) digits is 677376, while the sum is 43.

The square root of 3447043378 is about 58711.5267898902. The cubic root of 3447043378 is about 1510.5980377521.

The spelling of 3447043378 in words is "three billion, four hundred forty-seven million, forty-three thousand, three hundred seventy-eight".