7944636 has 48 divisors (see below), whose sum is σ = 21324800. Its totient is φ = 2255040.

The previous prime is 7944631. The next prime is 7944653. The reversal of 7944636 is 6364497.

It is a junction number, because it is equal to n+sod(n) for n = 7944594 and 7944603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22590 + ... + 22938.

Almost surely, 2^7944636 is an apocalyptic number.

It is an amenable number.

7944636 is an abundant number, since it is smaller than the sum of its proper divisors (13380164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7944636 is a wasteful number, since it uses less digits than its factorization.

7944636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 7944636 is about 2818.6230680955. The cubic root of 7944636 is about 199.5375649264.

The spelling of 7944636 in words is "seven million, nine hundred forty-four thousand, six hundred thirty-six".