3573749 has 2 divisors, whose sum is σ = 3573750. Its totient is φ = 3573748.

The previous prime is 3573733. The next prime is 3573751. The reversal of 3573749 is 9473753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2745649 + 828100 = 1657^2 + 910^2 .

It is an emirp because it is prime and its reverse (9473753) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3573749 - 2⁴ = 3573733 is a prime.

Together with 3573751, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3573709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786874 + 1786875.

It is an arithmetic number, because the mean of its divisors is an integer number (1786875).

Almost surely, 2^3573749 is an apocalyptic number.

It is an amenable number.

3573749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3573749 is an equidigital number, since it uses as much as digits as its factorization.

3573749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 38.

The square root of 3573749 is about 1890.4361930518. The cubic root of 3573749 is about 152.8884515931. Note that the first 3 decimals are identical.

The spelling of 3573749 in words is "three million, five hundred seventy-three thousand, seven hundred forty-nine".