85738897 has 2 divisors, whose sum is σ = 85738898. Its totient is φ = 85738896.

The previous prime is 85738889. The next prime is 85738903. The reversal of 85738897 is 79883758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75759616 + 9979281 = 8704^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 85738897 - 2³ = 85738889 is a prime.

It is not a weakly prime, because it can be changed into another prime (85738097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42869448 + 42869449.

It is an arithmetic number, because the mean of its divisors is an integer number (42869449).

Almost surely, 2^85738897 is an apocalyptic number.

It is an amenable number.

85738897 is a deficient number, since it is larger than the sum of its proper divisors (1).

85738897 is an equidigital number, since it uses as much as digits as its factorization.

85738897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The square root of 85738897 is about 9259.5300636695. The cubic root of 85738897 is about 440.9533341200.

The spelling of 85738897 in words is "eighty-five million, seven hundred thirty-eight thousand, eight hundred ninety-seven".