76009947 has 12 divisors (see below), whose sum is σ = 109742904. Its totient is φ = 46775040.

The previous prime is 76009931. The next prime is 76009949. The reversal of 76009947 is 74990067.

It is not a de Polignac number, because 76009947 - 2⁴ = 76009931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76009899 and 76009908.

It is not an unprimeable number, because it can be changed into a prime (76009949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74454 + ... + 75467.

It is an arithmetic number, because the mean of its divisors is an integer number (9145242).

Almost surely, 2^76009947 is an apocalyptic number.

76009947 is a deficient number, since it is larger than the sum of its proper divisors (33732957).

76009947 is a wasteful number, since it uses less digits than its factorization.

76009947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149950 (or 149937 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 76009947 is about 8718.3683679918. The cubic root of 76009947 is about 423.6008373286.

The spelling of 76009947 in words is "seventy-six million, nine thousand, nine hundred forty-seven".