76840705 has 8 divisors (see below), whose sum is σ = 92325312. Its totient is φ = 61394928.

The previous prime is 76840703. The next prime is 76840717. The reversal of 76840705 is 50704867.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 76840705 - 2¹ = 76840703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76840703) 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, 5157 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (11540664).

Almost surely, 2^76840705 is an apocalyptic number.

It is an amenable number.

76840705 is a deficient number, since it is larger than the sum of its proper divisors (15484607).

76840705 is a wasteful number, since it uses less digits than its factorization.

76840705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 76840705 is about 8765.8830131368. The cubic root of 76840705 is about 425.1385107934.

The spelling of 76840705 in words is "seventy-six million, eight hundred forty thousand, seven hundred five".