3678724 has 27 divisors (see below), whose sum is σ = 7543893. Its totient is φ = 1565088.

The previous prime is 3678713. The next prime is 3678743. The reversal of 3678724 is 4278763.

The square root of 3678724 is 1918.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 1517824 = 1470^2 + 1232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26784 + ... + 26920.

Almost surely, 2^3678724 is an apocalyptic number.

3678724 is the 1918-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3678724

3678724 is an abundant number, since it is smaller than the sum of its proper divisors (3865169).

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

3678724 is a wasteful number, since it uses less digits than its factorization.

3678724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 146 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The cubic root of 3678724 is about 154.3710063056.

The spelling of 3678724 in words is "three million, six hundred seventy-eight thousand, seven hundred twenty-four".