85042657 has 8 divisors (see below), whose sum is σ = 97266176. Its totient is φ = 72837792.

The previous prime is 85042649. The next prime is 85042663. The reversal of 85042657 is 75624058.

It is a happy number.

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 85042657 - 2³ = 85042649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85042667) 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, 7093 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (12158272).

Almost surely, 2^85042657 is an apocalyptic number.

It is an amenable number.

85042657 is a deficient number, since it is larger than the sum of its proper divisors (12223519).

85042657 is a wasteful number, since it uses less digits than its factorization.

85042657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9327.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 85042657 is about 9221.8575677572. The cubic root of 85042657 is about 439.7565061167.

The spelling of 85042657 in words is "eighty-five million, forty-two thousand, six hundred fifty-seven".