3613906 has 4 divisors (see below), whose sum is σ = 5420862. Its totient is φ = 1806952.

The previous prime is 3613889. The next prime is 3613931. The reversal of 3613906 is 6093163.

3613906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3575881 + 38025 = 1891^2 + 195^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903475 + ... + 903478.

Almost surely, 2^3613906 is an apocalyptic number.

3613906 is a deficient number, since it is larger than the sum of its proper divisors (1806956).

3613906 is a wasteful number, since it uses less digits than its factorization.

3613906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806955.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3613906 is about 1901.0276168431. The cubic root of 3613906 is about 153.4589718003.

The spelling of 3613906 in words is "three million, six hundred thirteen thousand, nine hundred six".