85290671 has 2 divisors, whose sum is σ = 85290672. Its totient is φ = 85290670.

The previous prime is 85290659. The next prime is 85290679. The reversal of 85290671 is 17609258.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85290671 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85290679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42645335 + 42645336.

It is an arithmetic number, because the mean of its divisors is an integer number (42645336).

Almost surely, 2^85290671 is an apocalyptic number.

85290671 is a deficient number, since it is larger than the sum of its proper divisors (1).

85290671 is an equidigital number, since it uses as much as digits as its factorization.

85290671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 85290671 is about 9235.2948518171. The cubic root of 85290671 is about 440.1835855802.

The spelling of 85290671 in words is "eighty-five million, two hundred ninety thousand, six hundred seventy-one".