4031669 has 4 divisors (see below), whose sum is σ = 4268844. Its totient is φ = 3794496.

The previous prime is 4031641. The next prime is 4031681. The reversal of 4031669 is 9661304.

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 3659569 + 372100 = 1913^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4031669 is a prime.

It is a super-2 number, since 2×4031669² = 32508709851122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4031639) 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, 118562 + ... + 118595.

It is an arithmetic number, because the mean of its divisors is an integer number (1067211).

Almost surely, 2^4031669 is an apocalyptic number.

It is an amenable number.

4031669 is a deficient number, since it is larger than the sum of its proper divisors (237175).

4031669 is a wasteful number, since it uses less digits than its factorization.

4031669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237174.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4031669 is about 2007.9016410173. The cubic root of 4031669 is about 159.1579328133.

The spelling of 4031669 in words is "four million, thirty-one thousand, six hundred sixty-nine".