85297417 has 2 divisors, whose sum is σ = 85297418. Its totient is φ = 85297416.

The previous prime is 85297397. The next prime is 85297481. The reversal of 85297417 is 71479258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79637776 + 5659641 = 8924^2 + 2379^2 .

It is a cyclic number.

It is not a de Polignac number, because 85297417 - 2²³ = 76908809 is a prime.

It is equal to p_4959934 and since 85297417 and 4959934 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (85297117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42648708 + 42648709.

It is an arithmetic number, because the mean of its divisors is an integer number (42648709).

Almost surely, 2^85297417 is an apocalyptic number.

It is an amenable number.

85297417 is a deficient number, since it is larger than the sum of its proper divisors (1).

85297417 is an equidigital number, since it uses as much as digits as its factorization.

85297417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 85297417 is about 9235.6600738659. The cubic root of 85297417 is about 440.1951906016.

The spelling of 85297417 in words is "eighty-five million, two hundred ninety-seven thousand, four hundred seventeen".