85952857 has 4 divisors (see below), whose sum is σ = 86192640. Its totient is φ = 85713076.

The previous prime is 85952837. The next prime is 85952929. The reversal of 85952857 is 75825958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85952857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85952857.

It is not an unprimeable number, because it can be changed into a prime (85952807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119353 + ... + 120070.

It is an arithmetic number, because the mean of its divisors is an integer number (21548160).

Almost surely, 2^85952857 is an apocalyptic number.

It is an amenable number.

85952857 is a deficient number, since it is larger than the sum of its proper divisors (239783).

85952857 is a wasteful number, since it uses less digits than its factorization.

85952857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239782.

The product of its digits is 1008000, while the sum is 49.

The square root of 85952857 is about 9271.0763668519. The cubic root of 85952857 is about 441.3198266820.

The spelling of 85952857 in words is "eighty-five million, nine hundred fifty-two thousand, eight hundred fifty-seven".