85683257 has 8 divisors (see below), whose sum is σ = 97536960. Its totient is φ = 74506960.

The previous prime is 85683253. The next prime is 85683259. The reversal of 85683257 is 75238658.

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

It is not a de Polignac number, because 85683257 - 2² = 85683253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85683251) 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, 169082 + ... + 169587.

It is an arithmetic number, because the mean of its divisors is an integer number (12192120).

Almost surely, 2^85683257 is an apocalyptic number.

It is an amenable number.

85683257 is a deficient number, since it is larger than the sum of its proper divisors (11853703).

85683257 is a wasteful number, since it uses less digits than its factorization.

85683257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338703.

The product of its digits is 403200, while the sum is 44.

The square root of 85683257 is about 9256.5251039469. The cubic root of 85683257 is about 440.8579283649.

The spelling of 85683257 in words is "eighty-five million, six hundred eighty-three thousand, two hundred fifty-seven".