3917224 has 8 divisors (see below), whose sum is σ = 7344810. Its totient is φ = 1958608.

The previous prime is 3917209. The next prime is 3917261. The reversal of 3917224 is 4227193.

It can be written as a sum of positive squares in only one way, i.e., 2304324 + 1612900 = 1518^2 + 1270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3917192 and 3917201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244819 + ... + 244834.

Almost surely, 2^3917224 is an apocalyptic number.

It is an amenable number.

3917224 is a deficient number, since it is larger than the sum of its proper divisors (3427586).

3917224 is a wasteful number, since it uses less digits than its factorization.

3917224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489659 (or 489655 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 3917224 is about 1979.1978172987. The cubic root of 3917224 is about 157.6374746618.

The spelling of 3917224 in words is "three million, nine hundred seventeen thousand, two hundred twenty-four".