116909578 has 8 divisors (see below), whose sum is σ = 185679972. Its totient is φ = 55016256.

The previous prime is 116909563. The next prime is 116909593. The reversal of 116909578 is 875909611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (116909563) and next prime (116909593).

It can be written as a sum of positive squares in 2 ways, for example, as 113571649 + 3337929 = 10657^2 + 1827^2 .

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

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, 1719225 + ... + 1719292.

Almost surely, 2^116909578 is an apocalyptic number.

116909578 is a deficient number, since it is larger than the sum of its proper divisors (68770394).

116909578 is a wasteful number, since it uses less digits than its factorization.

116909578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438536.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 116909578 is about 10812.4732600825. The cubic root of 116909578 is about 488.9712945764.

The spelling of 116909578 in words is "one hundred sixteen million, nine hundred nine thousand, five hundred seventy-eight".