3901285 has 4 divisors (see below), whose sum is σ = 4681548. Its totient is φ = 3121024.

The previous prime is 3901259. The next prime is 3901301. The reversal of 3901285 is 5821093.

3901285 is nontrivially palindromic in base 12.

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 2883204 + 1018081 = 1698^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901285 - 2¹³ = 3893093 is a prime.

It is a Duffinian number.

3901285 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 390124 + ... + 390133.

It is an arithmetic number, because the mean of its divisors is an integer number (1170387).

Almost surely, 2^3901285 is an apocalyptic number.

It is an amenable number.

3901285 is a deficient number, since it is larger than the sum of its proper divisors (780263).

3901285 is an equidigital number, since it uses as much as digits as its factorization.

3901285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780262.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 3901285 is about 1975.1670815402. The cubic root of 3901285 is about 157.4233775279.

It can be divided in two parts, 3901 and 285, that added together give a triangular number (4186 = T₉₁).

The spelling of 3901285 in words is "three million, nine hundred one thousand, two hundred eighty-five".