85260997 has 2 divisors, whose sum is σ = 85260998. Its totient is φ = 85260996.

The previous prime is 85260983. The next prime is 85261039. The reversal of 85260997 is 79906258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76055841 + 9205156 = 8721^2 + 3034^2 .

It is a cyclic number.

It is not a de Polignac number, because 85260997 - 2¹¹ = 85258949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85260697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42630498 + 42630499.

It is an arithmetic number, because the mean of its divisors is an integer number (42630499).

Almost surely, 2^85260997 is an apocalyptic number.

It is an amenable number.

85260997 is a deficient number, since it is larger than the sum of its proper divisors (1).

85260997 is an equidigital number, since it uses as much as digits as its factorization.

85260997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 85260997 is about 9233.6881580439. The cubic root of 85260997 is about 440.1325306692.

The spelling of 85260997 in words is "eighty-five million, two hundred sixty thousand, nine hundred ninety-seven".