77795141 has 2 divisors, whose sum is σ = 77795142. Its totient is φ = 77795140.

The previous prime is 77795119. The next prime is 77795143. The reversal of 77795141 is 14159777.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44502241 + 33292900 = 6671^2 + 5770^2 .

It is a cyclic number.

It is not a de Polignac number, because 77795141 - 2¹⁰ = 77794117 is a prime.

Together with 77795143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77795143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38897570 + 38897571.

It is an arithmetic number, because the mean of its divisors is an integer number (38897571).

Almost surely, 2^77795141 is an apocalyptic number.

It is an amenable number.

77795141 is a deficient number, since it is larger than the sum of its proper divisors (1).

77795141 is an equidigital number, since it uses as much as digits as its factorization.

77795141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 41.

The square root of 77795141 is about 8820.1553841188. The cubic root of 77795141 is about 426.8914835571.

The spelling of 77795141 in words is "seventy-seven million, seven hundred ninety-five thousand, one hundred forty-one".