3613864 has 32 divisors (see below), whose sum is σ = 7216200. Its totient is φ = 1693440.

The previous prime is 3613847. The next prime is 3613867. The reversal of 3613864 is 4683163.

It can be written as a sum of positive squares in 4 ways, for example, as 2748964 + 864900 = 1658^2 + 930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8374 + ... + 8794.

Almost surely, 2^3613864 is an apocalyptic number.

It is an amenable number.

3613864 is a deficient number, since it is larger than the sum of its proper divisors (3602336).

3613864 is a wasteful number, since it uses less digits than its factorization.

3613864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 489 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3613864 is about 1901.0165701540. The cubic root of 3613864 is about 153.4583773095.

It can be divided in two parts, 361 and 3864, that added together give a square (4225 = 65²).

The spelling of 3613864 in words is "three million, six hundred thirteen thousand, eight hundred sixty-four".