3447663 has 4 divisors (see below), whose sum is σ = 4596888. Its totient is φ = 2298440.

The previous prime is 3447643. The next prime is 3447673. The reversal of 3447663 is 3667443.

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 3447663 - 2⁶ = 3447599 is a prime.

It is an Ulam number.

It is a D-number.

3447663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574608 + ... + 574613.

It is an arithmetic number, because the mean of its divisors is an integer number (1149222).

Almost surely, 2^3447663 is an apocalyptic number.

3447663 is a deficient number, since it is larger than the sum of its proper divisors (1149225).

3447663 is a wasteful number, since it uses less digits than its factorization.

3447663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149224.

The product of its digits is 36288, while the sum is 33.

The square root of 3447663 is about 1856.7883562754. The cubic root of 3447663 is about 151.0688544659.

The spelling of 3447663 in words is "three million, four hundred forty-seven thousand, six hundred sixty-three".