76811477 has 2 divisors, whose sum is σ = 76811478. Its totient is φ = 76811476.

The previous prime is 76811473. The next prime is 76811503. The reversal of 76811477 is 77411867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67996516 + 8814961 = 8246^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 76811477 - 2² = 76811473 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76811473) 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 as a sum of consecutive naturals, namely, 38405738 + 38405739.

It is an arithmetic number, because the mean of its divisors is an integer number (38405739).

Almost surely, 2^76811477 is an apocalyptic number.

It is an amenable number.

76811477 is a deficient number, since it is larger than the sum of its proper divisors (1).

76811477 is an equidigital number, since it uses as much as digits as its factorization.

76811477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 41.

The square root of 76811477 is about 8764.2157093490. The cubic root of 76811477 is about 425.0846004594.

The spelling of 76811477 in words is "seventy-six million, eight hundred eleven thousand, four hundred seventy-seven".