85527397 has 2 divisors, whose sum is σ = 85527398. Its totient is φ = 85527396.

The previous prime is 85527349. The next prime is 85527439. The reversal of 85527397 is 79372558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85119076 + 408321 = 9226^2 + 639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85527397 is a 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 (85528397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42763698 + 42763699.

It is an arithmetic number, because the mean of its divisors is an integer number (42763699).

Almost surely, 2^85527397 is an apocalyptic number.

It is an amenable number.

85527397 is a deficient number, since it is larger than the sum of its proper divisors (1).

85527397 is an equidigital number, since it uses as much as digits as its factorization.

85527397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 85527397 is about 9248.1023458870. The cubic root of 85527397 is about 440.5904555652.

The spelling of 85527397 in words is "eighty-five million, five hundred twenty-seven thousand, three hundred ninety-seven".