85434865 has 8 divisors (see below), whose sum is σ = 102640320. Its totient is φ = 68268912.

The previous prime is 85434863. The next prime is 85434913. The reversal of 85434865 is 56843458.

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 85434865 - 2¹ = 85434863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85434863) 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, 4885 + ... + 13954.

It is an arithmetic number, because the mean of its divisors is an integer number (12830040).

Almost surely, 2^85434865 is an apocalyptic number.

It is an amenable number.

85434865 is a deficient number, since it is larger than the sum of its proper divisors (17205455).

85434865 is a wasteful number, since it uses less digits than its factorization.

85434865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19751.

The product of its digits is 460800, while the sum is 43.

The square root of 85434865 is about 9243.0982359813. The cubic root of 85434865 is about 440.4315067806.

The spelling of 85434865 in words is "eighty-five million, four hundred thirty-four thousand, eight hundred sixty-five".