5673649 has 2 divisors, whose sum is σ = 5673650. Its totient is φ = 5673648.

The previous prime is 5673643. The next prime is 5673653. The reversal of 5673649 is 9463765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3010225 + 2663424 = 1735^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 5673649 - 2¹⁵ = 5640881 is a prime.

It is not a weakly prime, because it can be changed into another prime (5673643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2836824 + 2836825.

It is an arithmetic number, because the mean of its divisors is an integer number (2836825).

Almost surely, 2^5673649 is an apocalyptic number.

It is an amenable number.

5673649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5673649 is an equidigital number, since it uses as much as digits as its factorization.

5673649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 5673649 is about 2381.9422746994. The cubic root of 5673649 is about 178.3559032391.

The spelling of 5673649 in words is "five million, six hundred seventy-three thousand, six hundred forty-nine".