3902669 has 4 divisors (see below), whose sum is σ = 3906780. Its totient is φ = 3898560.

The previous prime is 3902651. The next prime is 3902677. The reversal of 3902669 is 9662093.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2044900 + 1857769 = 1430^2 + 1363^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902669 - 2¹⁶ = 3837133 is a prime.

It is a super-2 number, since 2×3902669² = 30461650647122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3³ + 9⁵ + 0 + 2²¹ + 6⁵ + 6⁸ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3902609) by changing a digit.

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, 179 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (976695).

Almost surely, 2^3902669 is an apocalyptic number.

It is an amenable number.

3902669 is a deficient number, since it is larger than the sum of its proper divisors (4111).

3902669 is a wasteful number, since it uses less digits than its factorization.

3902669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 3902669 is about 1975.5174005814. The cubic root of 3902669 is about 157.4419908989.

The spelling of 3902669 in words is "three million, nine hundred two thousand, six hundred sixty-nine".