76772849 has 2 divisors, whose sum is σ = 76772850. Its totient is φ = 76772848.

The previous prime is 76772789. The next prime is 76772903. The reversal of 76772849 is 94827767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 734449 = 8720^2 + 857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76772849 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76772797 and 76772806.

It is not a weakly prime, because it can be changed into another prime (76774849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38386424 + 38386425.

It is an arithmetic number, because the mean of its divisors is an integer number (38386425).

Almost surely, 2^76772849 is an apocalyptic number.

It is an amenable number.

76772849 is a deficient number, since it is larger than the sum of its proper divisors (1).

76772849 is an equidigital number, since it uses as much as digits as its factorization.

76772849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 50.

The square root of 76772849 is about 8762.0116982346. The cubic root of 76772849 is about 425.0133310697.

The spelling of 76772849 in words is "seventy-six million, seven hundred seventy-two thousand, eight hundred forty-nine".