3950605 has 4 divisors (see below), whose sum is σ = 4740732. Its totient is φ = 3160480.

The previous prime is 3950603. The next prime is 3950627. The reversal of 3950605 is 5060593.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 2829124 = 1059^2 + 1682^2 .

It is not a de Polignac number, because 3950605 - 2¹ = 3950603 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 (3950603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395056 + ... + 395065.

It is an arithmetic number, because the mean of its divisors is an integer number (1185183).

Almost surely, 2^3950605 is an apocalyptic number.

It is an amenable number.

3950605 is a deficient number, since it is larger than the sum of its proper divisors (790127).

3950605 is an equidigital number, since it uses as much as digits as its factorization.

3950605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790126.

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

The square root of 3950605 is about 1987.6128898757. The cubic root of 3950605 is about 158.0839830184.

The spelling of 3950605 in words is "three million, nine hundred fifty thousand, six hundred five".