3690449 has 4 divisors (see below), whose sum is σ = 4217664. Its totient is φ = 3163236.

The previous prime is 3690437. The next prime is 3690473. The reversal of 3690449 is 9440963.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3690449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3690499) 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, 263597 + ... + 263610.

It is an arithmetic number, because the mean of its divisors is an integer number (1054416).

Almost surely, 2^3690449 is an apocalyptic number.

It is an amenable number.

3690449 is a deficient number, since it is larger than the sum of its proper divisors (527215).

3690449 is an equidigital number, since it uses as much as digits as its factorization.

3690449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527214.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3690449 is about 1921.0541377067. The cubic root of 3690449 is about 154.5348385179.

The spelling of 3690449 in words is "three million, six hundred ninety thousand, four hundred forty-nine".