85690097 has 2 divisors, whose sum is σ = 85690098. Its totient is φ = 85690096.

The previous prime is 85690093. The next prime is 85690103. The reversal of 85690097 is 79009658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 15649936 = 8369^2 + 3956^2 .

It is a cyclic number.

It is not a de Polignac number, because 85690097 - 2² = 85690093 is a prime.

It is not a weakly prime, because it can be changed into another prime (85690093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42845048 + 42845049.

It is an arithmetic number, because the mean of its divisors is an integer number (42845049).

Almost surely, 2^85690097 is an apocalyptic number.

It is an amenable number.

85690097 is a deficient number, since it is larger than the sum of its proper divisors (1).

85690097 is an equidigital number, since it uses as much as digits as its factorization.

85690097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 85690097 is about 9256.8945656737. The cubic root of 85690097 is about 440.8696591203.

The spelling of 85690097 in words is "eighty-five million, six hundred ninety thousand, ninety-seven".