3756449 has 4 divisors (see below), whose sum is σ = 3791664. Its totient is φ = 3721236.

The previous prime is 3756443. The next prime is 3756451. The reversal of 3756449 is 9446573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9446573 = 683 ⋅13831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3756449 is a prime.

It is a super-2 number, since 2×3756449² = 28221818179202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3756443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17447 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (947916).

Almost surely, 2^3756449 is an apocalyptic number.

It is an amenable number.

3756449 is a deficient number, since it is larger than the sum of its proper divisors (35215).

3756449 is a wasteful number, since it uses less digits than its factorization.

3756449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35214.

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

The square root of 3756449 is about 1938.1560824660. The cubic root of 3756449 is about 155.4506344817.

The spelling of 3756449 in words is "three million, seven hundred fifty-six thousand, four hundred forty-nine".