936640 has 28 divisors (see below), whose sum is σ = 2231136. Its totient is φ = 374528.

The previous prime is 936619. The next prime is 936647. The reversal of 936640 is 46639.

It is a junction number, because it is equal to n+sod(n) for n = 936599 and 936608.

It is not an unprimeable number, because it can be changed into a prime (936647) 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, 1144 + ... + 1783.

2⁹³⁶⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

936640 is an abundant number, since it is smaller than the sum of its proper divisors (1294496).

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

936640 is a wasteful number, since it uses less digits than its factorization.

936640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 936640 is about 967.8016325673. The cubic root of 936640 is about 97.8417548854.

The spelling of 936640 in words is "nine hundred thirty-six thousand, six hundred forty".