3667985 has 8 divisors (see below), whose sum is σ = 4419456. Its totient is φ = 2922480.

The previous prime is 3667981. The next prime is 3667987. The reversal of 3667985 is 5897663.

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

It is not a de Polignac number, because 3667985 - 2² = 3667981 is a prime.

It is a super-2 number, since 2×3667985² = 26908227920450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3667981) 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, 2 + ... + 2708.

It is an arithmetic number, because the mean of its divisors is an integer number (552432).

Almost surely, 2^3667985 is an apocalyptic number.

It is an amenable number.

3667985 is a deficient number, since it is larger than the sum of its proper divisors (751471).

3667985 is a wasteful number, since it uses less digits than its factorization.

3667985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its digits is 272160, while the sum is 44.

The square root of 3667985 is about 1915.1984231405. The cubic root of 3667985 is about 154.2206456544.

The spelling of 3667985 in words is "three million, six hundred sixty-seven thousand, nine hundred eighty-five".