117887925 has 12 divisors (see below), whose sum is σ = 194908160. Its totient is φ = 62873520.

The previous prime is 117887921. The next prime is 117887933. The reversal of 117887925 is 529788711.

It is a happy number.

It is not a de Polignac number, because 117887925 - 2² = 117887921 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117887921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785845 + ... + 785994.

Almost surely, 2^117887925 is an apocalyptic number.

117887925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117887925 is a deficient number, since it is larger than the sum of its proper divisors (77020235).

117887925 is a wasteful number, since it uses less digits than its factorization.

117887925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571852 (or 1571847 counting only the distinct ones).

The product of its digits is 282240, while the sum is 48.

The square root of 117887925 is about 10857.6205956922. The cubic root of 117887925 is about 490.3314777782.

The spelling of 117887925 in words is "one hundred seventeen million, eight hundred eighty-seven thousand, nine hundred twenty-five".