5405669 has 2 divisors, whose sum is σ = 5405670. Its totient is φ = 5405668.

The previous prime is 5405641. The next prime is 5405681. The reversal of 5405669 is 9665045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4464769 + 940900 = 2113^2 + 970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5405669 is a prime.

It is a super-2 number, since 2×5405669² = 58442514675122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5405969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702834 + 2702835.

It is an arithmetic number, because the mean of its divisors is an integer number (2702835).

Almost surely, 2^5405669 is an apocalyptic number.

It is an amenable number.

5405669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405669 is an equidigital number, since it uses as much as digits as its factorization.

5405669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5405669 is about 2325.0094623463. The cubic root of 5405669 is about 175.5024363642.

The spelling of 5405669 in words is "five million, four hundred five thousand, six hundred sixty-nine".