3618905 has 8 divisors (see below), whose sum is σ = 4385472. Its totient is φ = 2866608.

The previous prime is 3618869. The next prime is 3618907. The reversal of 3618905 is 5098163.

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 3618905 - 2¹⁸ = 3356761 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3618907) 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, 2999 + ... + 4028.

It is an arithmetic number, because the mean of its divisors is an integer number (548184).

Almost surely, 2^3618905 is an apocalyptic number.

It is an amenable number.

3618905 is a deficient number, since it is larger than the sum of its proper divisors (766567).

3618905 is a wasteful number, since it uses less digits than its factorization.

3618905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3618905 is about 1902.3419776686. The cubic root of 3618905 is about 153.5296974870.

The spelling of 3618905 in words is "three million, six hundred eighteen thousand, nine hundred five".