85008457 has 4 divisors (see below), whose sum is σ = 87081876. Its totient is φ = 82935040.

The previous prime is 85008433. The next prime is 85008467. The reversal of 85008457 is 75480058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3575881 + 81432576 = 1891^2 + 9024^2 .

It is a cyclic number.

It is not a de Polignac number, because 85008457 - 2¹⁵ = 84975689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85008467) 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, 1036648 + ... + 1036729.

It is an arithmetic number, because the mean of its divisors is an integer number (21770469).

Almost surely, 2^85008457 is an apocalyptic number.

It is an amenable number.

85008457 is a deficient number, since it is larger than the sum of its proper divisors (2073419).

85008457 is a wasteful number, since it uses less digits than its factorization.

85008457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073418.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 85008457 is about 9220.0030911058. The cubic root of 85008457 is about 439.6975486885.

The spelling of 85008457 in words is "eighty-five million, eight thousand, four hundred fifty-seven".