3447946 has 4 divisors (see below), whose sum is σ = 5171922. Its totient is φ = 1723972.

The previous prime is 3447943. The next prime is 3447947. The reversal of 3447946 is 6497443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6497443 = 149 ⋅43607.

It can be written as a sum of positive squares in only one way, i.e., 1729225 + 1718721 = 1315^2 + 1311^2 .

It is not an unprimeable number, because it can be changed into a prime (3447943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861985 + ... + 861988.

Almost surely, 2^3447946 is an apocalyptic number.

3447946 is a deficient number, since it is larger than the sum of its proper divisors (1723976).

3447946 is a wasteful number, since it uses less digits than its factorization.

3447946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723975.

The product of its digits is 72576, while the sum is 37.

The square root of 3447946 is about 1856.8645615661. The cubic root of 3447946 is about 151.0729878277.

The spelling of 3447946 in words is "three million, four hundred forty-seven thousand, nine hundred forty-six".