77094869 has 2 divisors, whose sum is σ = 77094870. Its totient is φ = 77094868.

The previous prime is 77094859. The next prime is 77094877. The reversal of 77094869 is 96849077.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 9690769 = 8210^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 77094869 - 2¹² = 77090773 is a prime.

It is a super-2 number, since 2×77094869² = 11887237652254322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77094859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38547434 + 38547435.

It is an arithmetic number, because the mean of its divisors is an integer number (38547435).

Almost surely, 2^77094869 is an apocalyptic number.

It is an amenable number.

77094869 is a deficient number, since it is larger than the sum of its proper divisors (1).

77094869 is an equidigital number, since it uses as much as digits as its factorization.

77094869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 77094869 is about 8780.3683863492. The cubic root of 77094869 is about 425.6067347905.

The spelling of 77094869 in words is "seventy-seven million, ninety-four thousand, eight hundred sixty-nine".