77050087 has 2 divisors, whose sum is σ = 77050088. Its totient is φ = 77050086.

The previous prime is 77050019. The next prime is 77050117. The reversal of 77050087 is 78005077.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78005077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77050087 - 2¹¹ = 77048039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77050007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38525043 + 38525044.

It is an arithmetic number, because the mean of its divisors is an integer number (38525044).

Almost surely, 2^77050087 is an apocalyptic number.

77050087 is a deficient number, since it is larger than the sum of its proper divisors (1).

77050087 is an equidigital number, since it uses as much as digits as its factorization.

77050087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 77050087 is about 8777.8178951263. The cubic root of 77050087 is about 425.5243116124.

The spelling of 77050087 in words is "seventy-seven million, fifty thousand, eighty-seven".