77546801 has 2 divisors, whose sum is σ = 77546802. Its totient is φ = 77546800.

The previous prime is 77546797. The next prime is 77546831. The reversal of 77546801 is 10864577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61152400 + 16394401 = 7820^2 + 4049^2 .

It is an emirp because it is prime and its reverse (10864577) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77546801 - 2² = 77546797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77546831) 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, 38773400 + 38773401.

It is an arithmetic number, because the mean of its divisors is an integer number (38773401).

Almost surely, 2^77546801 is an apocalyptic number.

It is an amenable number.

77546801 is a deficient number, since it is larger than the sum of its proper divisors (1).

77546801 is an equidigital number, since it uses as much as digits as its factorization.

77546801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 77546801 is about 8806.0661478324. The cubic root of 77546801 is about 426.4367540482.

The spelling of 77546801 in words is "seventy-seven million, five hundred forty-six thousand, eight hundred one".