3447864 has 48 divisors (see below), whose sum is σ = 10673520. Its totient is φ = 984960.

The previous prime is 3447859. The next prime is 3447883. The reversal of 3447864 is 4687443.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2917 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (222365).

Almost surely, 2^3447864 is an apocalyptic number.

It is an amenable number.

3447864 is an abundant number, since it is smaller than the sum of its proper divisors (7225656).

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

3447864 is a wasteful number, since it uses less digits than its factorization.

3447864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860 (or 6853 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 3447864 is about 1856.8424812030. The cubic root of 3447864 is about 151.0717901984.

The spelling of 3447864 in words is "three million, four hundred forty-seven thousand, eight hundred sixty-four".