77034869 has 2 divisors, whose sum is σ = 77034870. Its totient is φ = 77034868.

The previous prime is 77034857. The next prime is 77034877. The reversal of 77034869 is 96843077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66210769 + 10824100 = 8137^2 + 3290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77034869 is a prime.

It is a super-2 number, since 2×77034869² = 11868742083694322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77034809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38517434 + 38517435.

It is an arithmetic number, because the mean of its divisors is an integer number (38517435).

Almost surely, 2^77034869 is an apocalyptic number.

It is an amenable number.

77034869 is a deficient number, since it is larger than the sum of its proper divisors (1).

77034869 is an equidigital number, since it uses as much as digits as its factorization.

77034869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 77034869 is about 8776.9510081805. The cubic root of 77034869 is about 425.4962949650.

The spelling of 77034869 in words is "seventy-seven million, thirty-four thousand, eight hundred sixty-nine".