85477459 has 4 divisors (see below), whose sum is σ = 85636000. Its totient is φ = 85318920.

The previous prime is 85477433. The next prime is 85477481. The reversal of 85477459 is 95477458.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85477459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85477159) 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, 78459 + ... + 79540.

It is an arithmetic number, because the mean of its divisors is an integer number (21409000).

Almost surely, 2^85477459 is an apocalyptic number.

85477459 is a deficient number, since it is larger than the sum of its proper divisors (158541).

85477459 is a wasteful number, since it uses less digits than its factorization.

85477459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158540.

The product of its digits is 1411200, while the sum is 49.

The square root of 85477459 is about 9245.4020464229. The cubic root of 85477459 is about 440.5046877662.

Subtracting 85477459 from its reverse (95477458), we obtain a palindrome (9999999).

The spelling of 85477459 in words is "eighty-five million, four hundred seventy-seven thousand, four hundred fifty-nine".