85002077 has 2 divisors, whose sum is σ = 85002078. Its totient is φ = 85002076.

The previous prime is 85002059. The next prime is 85002079. The reversal of 85002077 is 77020058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81830116 + 3171961 = 9046^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 85002077 - 2⁸ = 85001821 is a prime.

Together with 85002079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85002079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42501038 + 42501039.

It is an arithmetic number, because the mean of its divisors is an integer number (42501039).

Almost surely, 2^85002077 is an apocalyptic number.

It is an amenable number.

85002077 is a deficient number, since it is larger than the sum of its proper divisors (1).

85002077 is an equidigital number, since it uses as much as digits as its factorization.

85002077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 85002077 is about 9219.6570977450. The cubic root of 85002077 is about 439.6865484475.

The spelling of 85002077 in words is "eighty-five million, two thousand, seventy-seven".