84008077 has 2 divisors, whose sum is σ = 84008078. Its totient is φ = 84008076.

The previous prime is 84008069. The next prime is 84008083. The reversal of 84008077 is 77080048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83283876 + 724201 = 9126^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 84008077 - 2³ = 84008069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84008027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42004038 + 42004039.

It is an arithmetic number, because the mean of its divisors is an integer number (42004039).

Almost surely, 2^84008077 is an apocalyptic number.

It is an amenable number.

84008077 is a deficient number, since it is larger than the sum of its proper divisors (1).

84008077 is an equidigital number, since it uses as much as digits as its factorization.

84008077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 84008077 is about 9165.5920157947. The cubic root of 84008077 is about 437.9659505929.

The spelling of 84008077 in words is "eighty-four million, eight thousand, seventy-seven".