78709614 has 8 divisors (see below), whose sum is σ = 157419240. Its totient is φ = 26236536.

The previous prime is 78709607. The next prime is 78709661. The reversal of 78709614 is 41690787.

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

78709614 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent 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, 6559129 + ... + 6559140.

It is an arithmetic number, because the mean of its divisors is an integer number (19677405).

Almost surely, 2^78709614 is an apocalyptic number.

78709614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78709614 is a wasteful number, since it uses less digits than its factorization.

78709614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13118274.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 78709614 is about 8871.8438895192. The cubic root of 78709614 is about 428.5576588274.

The spelling of 78709614 in words is "seventy-eight million, seven hundred nine thousand, six hundred fourteen".