3650905 has 16 divisors (see below), whose sum is σ = 4665600. Its totient is φ = 2736448.

The previous prime is 3650887. The next prime is 3650929. The reversal of 3650905 is 5090563.

It is a happy number.

It is not a de Polignac number, because 3650905 - 2¹¹ = 3648857 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5796 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^3650905 is an apocalyptic number.

It is an amenable number.

3650905 is a deficient number, since it is larger than the sum of its proper divisors (1014695).

3650905 is a wasteful number, since it uses less digits than its factorization.

3650905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 3650905 is about 1910.7341520997. The cubic root of 3650905 is about 153.9808966015.

The spelling of 3650905 in words is "three million, six hundred fifty thousand, nine hundred five".