3665386 has 4 divisors (see below), whose sum is σ = 5498082. Its totient is φ = 1832692.

The previous prime is 3665377. The next prime is 3665393. The reversal of 3665386 is 6835663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3493161 + 172225 = 1869^2 + 415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916345 + ... + 916348.

Almost surely, 2^3665386 is an apocalyptic number.

3665386 is a deficient number, since it is larger than the sum of its proper divisors (1832696).

3665386 is a wasteful number, since it uses less digits than its factorization.

3665386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832695.

The product of its digits is 77760, while the sum is 37.

The square root of 3665386 is about 1914.5197831310. The cubic root of 3665386 is about 154.1842120117.

The spelling of 3665386 in words is "three million, six hundred sixty-five thousand, three hundred eighty-six".