116671385 has 4 divisors (see below), whose sum is σ = 140005668. Its totient is φ = 93337104.

The previous prime is 116671369. The next prime is 116671393. The reversal of 116671385 is 583176611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583176611 = 47 ⋅12408013.

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 44302336 = 8507^2 + 6656^2 .

It is a cyclic number.

It is not a de Polignac number, because 116671385 - 2⁴ = 116671369 is a prime.

It is a super-2 number, since 2×116671385² = 27224424155636450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11667134 + ... + 11667143.

It is an arithmetic number, because the mean of its divisors is an integer number (35001417).

Almost surely, 2^116671385 is an apocalyptic number.

It is an amenable number.

116671385 is a deficient number, since it is larger than the sum of its proper divisors (23334283).

116671385 is an equidigital number, since it uses as much as digits as its factorization.

116671385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334282.

The product of its digits is 30240, while the sum is 38.

The square root of 116671385 is about 10801.4529115300. The cubic root of 116671385 is about 488.6389901008.

The spelling of 116671385 in words is "one hundred sixteen million, six hundred seventy-one thousand, three hundred eighty-five".