85717958 has 8 divisors (see below), whose sum is σ = 129715128. Its totient is φ = 42479584.

The previous prime is 85717943. The next prime is 85717967. The reversal of 85717958 is 85971758.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189416 + ... + 189867.

It is an arithmetic number, because the mean of its divisors is an integer number (16214391).

Almost surely, 2^85717958 is an apocalyptic number.

85717958 is a deficient number, since it is larger than the sum of its proper divisors (43997170).

85717958 is a wasteful number, since it uses less digits than its factorization.

85717958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379398.

The product of its digits is 705600, while the sum is 50.

The square root of 85717958 is about 9258.3993216970. The cubic root of 85717958 is about 440.9174349194.

The spelling of 85717958 in words is "eighty-five million, seven hundred seventeen thousand, nine hundred fifty-eight".