77161841 has 2 divisors, whose sum is σ = 77161842. Its totient is φ = 77161840.

The previous prime is 77161829. The next prime is 77161853. The reversal of 77161841 is 14816177.

It is a balanced prime because it is at equal distance from previous prime (77161829) and next prime (77161853).

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 73441 = 8780^2 + 271^2 .

It is an emirp because it is prime and its reverse (14816177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77161841 - 2¹⁴ = 77145457 is a prime.

It is not a weakly prime, because it can be changed into another prime (77161871) 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, 38580920 + 38580921.

It is an arithmetic number, because the mean of its divisors is an integer number (38580921).

Almost surely, 2^77161841 is an apocalyptic number.

It is an amenable number.

77161841 is a deficient number, since it is larger than the sum of its proper divisors (1).

77161841 is an equidigital number, since it uses as much as digits as its factorization.

77161841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 35.

The square root of 77161841 is about 8784.1812936665. The cubic root of 77161841 is about 425.7299400695.

The spelling of 77161841 in words is "seventy-seven million, one hundred sixty-one thousand, eight hundred forty-one".