3901305 has 16 divisors (see below), whose sum is σ = 6281280. Its totient is φ = 2067648.

The previous prime is 3901301. The next prime is 3901333. The reversal of 3901305 is 5031093.

It is not a de Polignac number, because 3901305 - 2² = 3901301 is a prime.

3901305 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3901301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (392580).

Almost surely, 2^3901305 is an apocalyptic number.

It is an amenable number.

3901305 is a deficient number, since it is larger than the sum of its proper divisors (2379975).

3901305 is a wasteful number, since it uses less digits than its factorization.

3901305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 3901305 is about 1975.1721443965. The cubic root of 3901305 is about 157.4236465385.

Adding to 3901305 its reverse (5031093), we get a palindrome (8932398).

The spelling of 3901305 in words is "three million, nine hundred one thousand, three hundred five".