3918736 has 20 divisors (see below), whose sum is σ = 7630092. Its totient is φ = 1949696.

The previous prime is 3918697. The next prime is 3918743. The reversal of 3918736 is 6378193.

It can be written as a sum of positive squares in 2 ways, for example, as 3027600 + 891136 = 1740^2 + 944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3918695 and 3918704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3636 + ... + 4588.

Almost surely, 2^3918736 is an apocalyptic number.

It is an amenable number.

3918736 is a deficient number, since it is larger than the sum of its proper divisors (3711356).

3918736 is a wasteful number, since it uses less digits than its factorization.

3918736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1212 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 3918736 is about 1979.5797533820. The cubic root of 3918736 is about 157.6577540912.

The spelling of 3918736 in words is "three million, nine hundred eighteen thousand, seven hundred thirty-six".