3649293 has 10 divisors (see below), whose sum is σ = 5451534. Its totient is φ = 2432808.

The previous prime is 3649259. The next prime is 3649297. The reversal of 3649293 is 3929463.

It is a happy number.

3649293 is a `hidden beast` number, since 3 + 649 + 2 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3337929 + 311364 = 1827^2 + 558^2 .

It is not a de Polignac number, because 3649293 - 2⁶ = 3649229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649297) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22446 + ... + 22607.

Almost surely, 2^3649293 is an apocalyptic number.

It is an amenable number.

3649293 is a deficient number, since it is larger than the sum of its proper divisors (1802241).

3649293 is an equidigital number, since it uses as much as digits as its factorization.

3649293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45065 (or 45056 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 3649293 is about 1910.3122781367. The cubic root of 3649293 is about 153.9582306464.

It can be divided in two parts, 36492 and 93, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 3649293 in words is "three million, six hundred forty-nine thousand, two hundred ninety-three".