3930605 has 8 divisors (see below), whose sum is σ = 5390592. Its totient is φ = 2695248.

The previous prime is 3930601. The next prime is 3930607. The reversal of 3930605 is 5060393.

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 3930605 - 2² = 3930601 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 (3930601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56117 + ... + 56186.

It is an arithmetic number, because the mean of its divisors is an integer number (673824).

Almost surely, 2^3930605 is an apocalyptic number.

3930605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3930605 is a deficient number, since it is larger than the sum of its proper divisors (1459987).

3930605 is a wasteful number, since it uses less digits than its factorization.

3930605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112315.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 3930605 is about 1982.5753453526. The cubic root of 3930605 is about 157.8167640256.

Adding to 3930605 its reverse (5060393), we get a palindrome (8990998).

The spelling of 3930605 in words is "three million, nine hundred thirty thousand, six hundred five".