4007669 has 4 divisors (see below), whose sum is σ = 4013100. Its totient is φ = 4002240.

The previous prime is 4007659. The next prime is 4007671. The reversal of 4007669 is 9667004.

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 1787569 + 2220100 = 1337^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 4007669 - 2⁸ = 4007413 is a prime.

It is a super-2 number, since 2×4007669² = 32122821627122, 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 (4007629) 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, 1394 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (1003275).

Almost surely, 2^4007669 is an apocalyptic number.

It is an amenable number.

4007669 is a deficient number, since it is larger than the sum of its proper divisors (5431).

4007669 is an equidigital number, since it uses as much as digits as its factorization.

4007669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 4007669 is about 2001.9163319180. The cubic root of 4007669 is about 158.8414885875.

The spelling of 4007669 in words is "four million, seven thousand, six hundred sixty-nine".