76505479 has 2 divisors, whose sum is σ = 76505480. Its totient is φ = 76505478.

The previous prime is 76505449. The next prime is 76505537. The reversal of 76505479 is 97450567.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76505479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76505449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38252739 + 38252740.

It is an arithmetic number, because the mean of its divisors is an integer number (38252740).

Almost surely, 2^76505479 is an apocalyptic number.

76505479 is a deficient number, since it is larger than the sum of its proper divisors (1).

76505479 is an equidigital number, since it uses as much as digits as its factorization.

76505479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 76505479 is about 8746.7410502427. The cubic root of 76505479 is about 424.5193717768.

The spelling of 76505479 in words is "seventy-six million, five hundred five thousand, four hundred seventy-nine".