3612665 has 16 divisors (see below), whose sum is σ = 4987008. Its totient is φ = 2461056.

The previous prime is 3612659. The next prime is 3612667. The reversal of 3612665 is 5662163.

It is a cyclic number.

It is not a de Polignac number, because 3612665 - 2¹² = 3608569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3612667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7934 + ... + 8376.

It is an arithmetic number, because the mean of its divisors is an integer number (311688).

Almost surely, 2^3612665 is an apocalyptic number.

3612665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3612665 is a deficient number, since it is larger than the sum of its proper divisors (1374343).

3612665 is a wasteful number, since it uses less digits than its factorization.

3612665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 6480, while the sum is 29.

The square root of 3612665 is about 1900.7011864046. The cubic root of 3612665 is about 153.4414040691.

The spelling of 3612665 in words is "three million, six hundred twelve thousand, six hundred sixty-five".