3564749 has 2 divisors, whose sum is σ = 3564750. Its totient is φ = 3564748.

The previous prime is 3564739. The next prime is 3564751. The reversal of 3564749 is 9474653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3396649 + 168100 = 1843^2 + 410^2 .

It is an emirp because it is prime and its reverse (9474653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3564749 - 2⁴ = 3564733 is a prime.

Together with 3564751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3564719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1782374 + 1782375.

It is an arithmetic number, because the mean of its divisors is an integer number (1782375).

Almost surely, 2^3564749 is an apocalyptic number.

It is an amenable number.

3564749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3564749 is an equidigital number, since it uses as much as digits as its factorization.

3564749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 3564749 is about 1888.0542894737. The cubic root of 3564749 is about 152.7600007917.

The spelling of 3564749 in words is "three million, five hundred sixty-four thousand, seven hundred forty-nine".