3659997 has 8 divisors (see below), whose sum is σ = 5323680. Its totient is φ = 2218160.

The previous prime is 3659993. The next prime is 3660011. The reversal of 3659997 is 7999563.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3659997 - 2² = 3659993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55422 + ... + 55487.

It is an arithmetic number, because the mean of its divisors is an integer number (665460).

Almost surely, 2^3659997 is an apocalyptic number.

It is an amenable number.

3659997 is a deficient number, since it is larger than the sum of its proper divisors (1663683).

3659997 is a wasteful number, since it uses less digits than its factorization.

3659997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110923.

The product of its digits is 459270, while the sum is 48.

The square root of 3659997 is about 1913.1118629082. Note that the first 3 decimals coincide. The cubic root of 3659997 is about 154.1086123106.

It can be divided in two parts, 3659 and 997, that added together give a triangular number (4656 = T₉₆).

The spelling of 3659997 in words is "three million, six hundred fifty-nine thousand, nine hundred ninety-seven".