3693987 has 12 divisors (see below), whose sum is σ = 5820984. Its totient is φ = 2238720.

The previous prime is 3693983. The next prime is 3693997. The reversal of 3693987 is 7893963.

It is a happy number.

It is not a de Polignac number, because 3693987 - 2² = 3693983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3693983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18558 + ... + 18755.

It is an arithmetic number, because the mean of its divisors is an integer number (485082).

Almost surely, 2^3693987 is an apocalyptic number.

3693987 is a deficient number, since it is larger than the sum of its proper divisors (2126997).

3693987 is a wasteful number, since it uses less digits than its factorization.

3693987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37330 (or 37327 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3693987 is about 1921.9747657032. The cubic root of 3693987 is about 154.5842064613.

It can be divided in two parts, 369 and 3987, that added together give a square (4356 = 66²).

The spelling of 3693987 in words is "three million, six hundred ninety-three thousand, nine hundred eighty-seven".