3649379 has 4 divisors (see below), whose sum is σ = 3656184. Its totient is φ = 3642576.

The previous prime is 3649363. The next prime is 3649397. The reversal of 3649379 is 9739463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9739463 = 2203 ⋅4421.

It is a cyclic number.

It is not a de Polignac number, because 3649379 - 2⁴ = 3649363 is a prime.

It is a Duffinian number.

Its product of digits (122472) is a multiple of the sum of its prime divisors (6804).

It is not an unprimeable number, because it can be changed into a prime (3649579) 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, 2522 + ... + 3695.

It is an arithmetic number, because the mean of its divisors is an integer number (914046).

Almost surely, 2^3649379 is an apocalyptic number.

3649379 is a deficient number, since it is larger than the sum of its proper divisors (6805).

3649379 is an equidigital number, since it uses as much as digits as its factorization.

3649379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804.

The product of its digits is 122472, while the sum is 41.

The square root of 3649379 is about 1910.3347874129. The cubic root of 3649379 is about 153.9594400408.

The spelling of 3649379 in words is "three million, six hundred forty-nine thousand, three hundred seventy-nine".