117678746 has 4 divisors (see below), whose sum is σ = 176518122. Its totient is φ = 58839372.

The previous prime is 117678739. The next prime is 117678773. The reversal of 117678746 is 647876711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116877721 + 801025 = 10811^2 + 895^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117678746.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29419685 + ... + 29419688.

Almost surely, 2^117678746 is an apocalyptic number.

117678746 is a deficient number, since it is larger than the sum of its proper divisors (58839376).

117678746 is an equidigital number, since it uses as much as digits as its factorization.

117678746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58839375.

The product of its digits is 395136, while the sum is 47.

The square root of 117678746 is about 10847.9834992500. The cubic root of 117678746 is about 490.0412932020.

The spelling of 117678746 in words is "one hundred seventeen million, six hundred seventy-eight thousand, seven hundred forty-six".