3973669 has 4 divisors (see below), whose sum is σ = 4541344. Its totient is φ = 3405996.

The previous prime is 3973661. The next prime is 3973691. The reversal of 3973669 is 9663793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3973669 - 2³ = 3973661 is a prime.

It is a super-2 number, since 2×3973669² = 31580090643122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973661) 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, 283827 + ... + 283840.

It is an arithmetic number, because the mean of its divisors is an integer number (1135336).

Almost surely, 2^3973669 is an apocalyptic number.

It is an amenable number.

3973669 is a deficient number, since it is larger than the sum of its proper divisors (567675).

3973669 is an equidigital number, since it uses as much as digits as its factorization.

3973669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567674.

The product of its digits is 183708, while the sum is 43.

The square root of 3973669 is about 1993.4063810473. The cubic root of 3973669 is about 158.3910226224.

The spelling of 3973669 in words is "three million, nine hundred seventy-three thousand, six hundred sixty-nine".