76564047 has 16 divisors (see below), whose sum is σ = 116829440. Its totient is φ = 43690752.

The previous prime is 76564001. The next prime is 76564051. The reversal of 76564047 is 74046567.

It is not a de Polignac number, because 76564047 - 2⁶ = 76563983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76563996 and 76564014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76564067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16479 + ... + 20607.

It is an arithmetic number, because the mean of its divisors is an integer number (7301840).

Almost surely, 2^76564047 is an apocalyptic number.

76564047 is a deficient number, since it is larger than the sum of its proper divisors (40265393).

76564047 is a wasteful number, since it uses less digits than its factorization.

76564047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 76564047 is about 8750.0883995535. The cubic root of 76564047 is about 424.6276729904.

The spelling of 76564047 in words is "seventy-six million, five hundred sixty-four thousand, forty-seven".