3900969 has 12 divisors (see below), whose sum is σ = 5674500. Its totient is φ = 2582304.

The previous prime is 3900943. The next prime is 3900989. The reversal of 3900969 is 9690093.

3900969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1904400 + 1996569 = 1380^2 + 1413^2 .

It is not a de Polignac number, because 3900969 - 2⁵ = 3900937 is a prime.

It is a super-2 number, since 2×3900969² = 30435118277922, which contains 22 as substring.

It is a Curzon number.

3900969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3900929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (472875).

Almost surely, 2^3900969 is an apocalyptic number.

It is an amenable number.

3900969 is a deficient number, since it is larger than the sum of its proper divisors (1773531).

3900969 is a wasteful number, since it uses less digits than its factorization.

3900969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 3900969 is about 1975.0870866876. The cubic root of 3900969 is about 157.4191270368.

The spelling of 3900969 in words is "three million, nine hundred thousand, nine hundred sixty-nine".