3646413 has 6 divisors (see below), whose sum is σ = 5267054. Its totient is φ = 2430936.

The previous prime is 3646411. The next prime is 3646421. The reversal of 3646413 is 3146463.

3646413 is a `hidden beast` number, since 3 + 646 + 4 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 1127844 = 1587^2 + 1062^2 .

It is not a de Polignac number, because 3646413 - 2¹ = 3646411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202570 + ... + 202587.

Almost surely, 2^3646413 is an apocalyptic number.

It is an amenable number.

3646413 is a deficient number, since it is larger than the sum of its proper divisors (1620641).

3646413 is a wasteful number, since it uses less digits than its factorization.

3646413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405163 (or 405160 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 3646413 is about 1909.5583258963. The cubic root of 3646413 is about 153.9177190187.

It can be divided in two parts, 364 and 6413, that multiplied together give a palindrome (2334332).

The spelling of 3646413 in words is "three million, six hundred forty-six thousand, four hundred thirteen".