77895673 has 2 divisors, whose sum is σ = 77895674. Its totient is φ = 77895672.

The previous prime is 77895569. The next prime is 77895691. The reversal of 77895673 is 37659877.

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., 64448784 + 13446889 = 8028^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 77895673 - 2²¹ = 75798521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77895673.

It is not a weakly prime, because it can be changed into another prime (77895373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38947836 + 38947837.

It is an arithmetic number, because the mean of its divisors is an integer number (38947837).

Almost surely, 2^77895673 is an apocalyptic number.

It is an amenable number.

77895673 is a deficient number, since it is larger than the sum of its proper divisors (1).

77895673 is an equidigital number, since it uses as much as digits as its factorization.

77895673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 52.

The square root of 77895673 is about 8825.8525367241. The cubic root of 77895673 is about 427.0752901588.

The spelling of 77895673 in words is "seventy-seven million, eight hundred ninety-five thousand, six hundred seventy-three".