85345539 has 4 divisors (see below), whose sum is σ = 113794056. Its totient is φ = 56897024.

The previous prime is 85345523. The next prime is 85345567. The reversal of 85345539 is 93554358.

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

It is a cyclic number.

It is not a de Polignac number, because 85345539 - 2⁴ = 85345523 is a prime.

It is a super-2 number, since 2×85345539² = 14567722054401042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85345539.

It is not an unprimeable number, because it can be changed into a prime (85345339) 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, 14224254 + ... + 14224259.

It is an arithmetic number, because the mean of its divisors is an integer number (28448514).

Almost surely, 2^85345539 is an apocalyptic number.

85345539 is a deficient number, since it is larger than the sum of its proper divisors (28448517).

85345539 is a wasteful number, since it uses less digits than its factorization.

85345539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28448516.

The product of its digits is 324000, while the sum is 42.

The square root of 85345539 is about 9238.2649344993. The cubic root of 85345539 is about 440.2779562599.

The spelling of 85345539 in words is "eighty-five million, three hundred forty-five thousand, five hundred thirty-nine".