3550691 has 2 divisors, whose sum is σ = 3550692. Its totient is φ = 3550690.

The previous prime is 3550681. The next prime is 3550693. The reversal of 3550691 is 1960553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3550691 - 2¹⁸ = 3288547 is a prime.

Together with 3550693, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3¹³ + 5⁵ + 5⁹ + 0 + 6² + 9² + 1 .

It is not a weakly prime, because it can be changed into another prime (3550693) 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 as a sum of consecutive naturals, namely, 1775345 + 1775346.

It is an arithmetic number, because the mean of its divisors is an integer number (1775346).

Almost surely, 2^3550691 is an apocalyptic number.

3550691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550691 is an equidigital number, since it uses as much as digits as its factorization.

3550691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 3550691 is about 1884.3277315796. The cubic root of 3550691 is about 152.5589273301.

The spelling of 3550691 in words is "three million, five hundred fifty thousand, six hundred ninety-one".