117628 has 12 divisors (see below), whose sum is σ = 235312. Its totient is φ = 50400.

The previous prime is 117619. The next prime is 117643. The reversal of 117628 is 826711.

117628 is an admirable number.

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2073 + ... + 2128.

117628 is a Friedman number, since it can be written as 7^6-11-8-2, using all its digits and the basic arithmetic operations.

2¹¹⁷⁶²⁸ is an apocalyptic number.

It is an amenable number.

117628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

117628 is a wasteful number, since it uses less digits than its factorization.

117628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212 (or 4210 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 117628 is about 342.9693863889. The cubic root of 117628 is about 48.9970843746.

The spelling of 117628 in words is "one hundred seventeen thousand, six hundred twenty-eight".