3649499 has 4 divisors (see below), whose sum is σ = 4170864. Its totient is φ = 3128136.

The previous prime is 3649487. The next prime is 3649511. The reversal of 3649499 is 9949463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9949463 = 967 ⋅10289.

It is an interprime number because it is at equal distance from previous prime (3649487) and next prime (3649511).

It is a cyclic number.

It is not a de Polignac number, because 3649499 - 2¹⁶ = 3583963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3649469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260672 + ... + 260685.

It is an arithmetic number, because the mean of its divisors is an integer number (1042716).

Almost surely, 2^3649499 is an apocalyptic number.

3649499 is a deficient number, since it is larger than the sum of its proper divisors (521365).

3649499 is an equidigital number, since it uses as much as digits as its factorization.

3649499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521364.

The product of its digits is 209952, while the sum is 44.

The square root of 3649499 is about 1910.3661952620. The cubic root of 3649499 is about 153.9611275362.

The spelling of 3649499 in words is "three million, six hundred forty-nine thousand, four hundred ninety-nine".