117428667 has 8 divisors (see below), whose sum is σ = 156873024. Its totient is φ = 78135048.

The previous prime is 117428659. The next prime is 117428669. The reversal of 117428667 is 766824711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117428667 - 2³ = 117428659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117428669) 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, 35853 + ... + 38990.

It is an arithmetic number, because the mean of its divisors is an integer number (19609128).

Almost surely, 2^117428667 is an apocalyptic number.

117428667 is a deficient number, since it is larger than the sum of its proper divisors (39444357).

117428667 is an equidigital number, since it uses as much as digits as its factorization.

117428667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75369.

The product of its digits is 112896, while the sum is 42.

The square root of 117428667 is about 10836.4508488711. The cubic root of 117428667 is about 489.6939182427.

The spelling of 117428667 in words is "one hundred seventeen million, four hundred twenty-eight thousand, six hundred sixty-seven".