85678297 has 8 divisors (see below), whose sum is σ = 86385096. Its totient is φ = 84974592.

The previous prime is 85678291. The next prime is 85678301. The reversal of 85678297 is 79287658.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 85673536 = 69^2 + 9256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85678297 - 2⁷ = 85678169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85678291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107103 + ... + 107899.

It is an arithmetic number, because the mean of its divisors is an integer number (10798137).

Almost surely, 2^85678297 is an apocalyptic number.

It is an amenable number.

85678297 is a deficient number, since it is larger than the sum of its proper divisors (706799).

85678297 is a wasteful number, since it uses less digits than its factorization.

85678297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547.

The product of its digits is 1693440, while the sum is 52.

The square root of 85678297 is about 9256.2571809560. The cubic root of 85678297 is about 440.8494214617.

The spelling of 85678297 in words is "eighty-five million, six hundred seventy-eight thousand, two hundred ninety-seven".