85718659 has 24 divisors (see below), whose sum is σ = 96843600. Its totient is φ = 75778560.

The previous prime is 85718617. The next prime is 85718683. The reversal of 85718659 is 95681758.

It is not a de Polignac number, because 85718659 - 2¹³ = 85710467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85710659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616612 + ... + 616750.

It is an arithmetic number, because the mean of its divisors is an integer number (4035150).

Almost surely, 2^85718659 is an apocalyptic number.

85718659 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

85718659 is a deficient number, since it is larger than the sum of its proper divisors (11124941).

85718659 is a wasteful number, since it uses less digits than its factorization.

85718659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 282 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The square root of 85718659 is about 9258.4371791356. The cubic root of 85718659 is about 440.9186368546.

The spelling of 85718659 in words is "eighty-five million, seven hundred eighteen thousand, six hundred fifty-nine".