3905693 has 4 divisors (see below), whose sum is σ = 4260768. Its totient is φ = 3550620.

The previous prime is 3905687. The next prime is 3905711. The reversal of 3905693 is 3965093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3905693 - 2⁴ = 3905677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177521 + ... + 177542.

It is an arithmetic number, because the mean of its divisors is an integer number (1065192).

Almost surely, 2^3905693 is an apocalyptic number.

It is an amenable number.

3905693 is a deficient number, since it is larger than the sum of its proper divisors (355075).

3905693 is a wasteful number, since it uses less digits than its factorization.

3905693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355074.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3905693 is about 1976.2826214891. The cubic root of 3905693 is about 157.4826452701.

The spelling of 3905693 in words is "three million, nine hundred five thousand, six hundred ninety-three".