3662986 has 4 divisors (see below), whose sum is σ = 5494482. Its totient is φ = 1831492.

The previous prime is 3662983. The next prime is 3662987. The reversal of 3662986 is 6892663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6892663 = 23 ⋅299681.

It can be written as a sum of positive squares in only one way, i.e., 2825761 + 837225 = 1681^2 + 915^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3662983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915745 + ... + 915748.

Almost surely, 2^3662986 is an apocalyptic number.

3662986 is a deficient number, since it is larger than the sum of its proper divisors (1831496).

3662986 is a wasteful number, since it uses less digits than its factorization.

3662986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831495.

The product of its digits is 93312, while the sum is 40.

The square root of 3662986 is about 1913.8928914649. The cubic root of 3662986 is about 154.1505527188.

The spelling of 3662986 in words is "three million, six hundred sixty-two thousand, nine hundred eighty-six".