36777791 has 2 divisors, whose sum is σ = 36777792. Its totient is φ = 36777790.

The previous prime is 36777773. The next prime is 36777823. The reversal of 36777791 is 19777763.

It is a weak prime.

It is an emirp because it is prime and its reverse (19777763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36777791 - 2¹⁴ = 36761407 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 (36777701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18388895 + 18388896.

It is an arithmetic number, because the mean of its divisors is an integer number (18388896).

Almost surely, 2^36777791 is an apocalyptic number.

36777791 is a deficient number, since it is larger than the sum of its proper divisors (1).

36777791 is an equidigital number, since it uses as much as digits as its factorization.

36777791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388962, while the sum is 47.

The square root of 36777791 is about 6064.4695563586. The cubic root of 36777791 is about 332.5537735029.

The spelling of 36777791 in words is "thirty-six million, seven hundred seventy-seven thousand, seven hundred ninety-one".