76705147 has 8 divisors (see below), whose sum is σ = 81152000. Its totient is φ = 72299304.

The previous prime is 76705117. The next prime is 76705159. The reversal of 76705147 is 74150767.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76705147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76705117) 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, 6363 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (10144000).

Almost surely, 2^76705147 is an apocalyptic number.

76705147 is a deficient number, since it is larger than the sum of its proper divisors (4446853).

76705147 is a wasteful number, since it uses less digits than its factorization.

76705147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 76705147 is about 8758.1474639332. The cubic root of 76705147 is about 424.8883619119. Note that the first 3 decimals are identical.

The spelling of 76705147 in words is "seventy-six million, seven hundred five thousand, one hundred forty-seven".