85792539 has 8 divisors (see below), whose sum is σ = 130731520. Its totient is φ = 49024296.

The previous prime is 85792537. The next prime is 85792547. The reversal of 85792539 is 93529758.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85792539 - 2¹ = 85792537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85792537) 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, 2042659 + ... + 2042700.

It is an arithmetic number, because the mean of its divisors is an integer number (16341440).

Almost surely, 2^85792539 is an apocalyptic number.

85792539 is a deficient number, since it is larger than the sum of its proper divisors (44938981).

85792539 is a wasteful number, since it uses less digits than its factorization.

85792539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085369.

The product of its digits is 680400, while the sum is 48.

The square root of 85792539 is about 9262.4261940379. The cubic root of 85792539 is about 441.0452748392.

The spelling of 85792539 in words is "eighty-five million, seven hundred ninety-two thousand, five hundred thirty-nine".