3447972 has 36 divisors (see below), whose sum is σ = 9509136. Its totient is φ = 1044720.

The previous prime is 3447971. The next prime is 3447989. The reversal of 3447972 is 2797443.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3447971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3958 + ... + 4749.

Almost surely, 2^3447972 is an apocalyptic number.

It is an amenable number.

3447972 is an abundant number, since it is smaller than the sum of its proper divisors (6061164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3447972 is a wasteful number, since it uses less digits than its factorization.

3447972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728 (or 8723 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3447972 is about 1856.8715626020. The cubic root of 3447972 is about 151.0733675599.

The spelling of 3447972 in words is "three million, four hundred forty-seven thousand, nine hundred seventy-two".