85412477 has 4 divisors (see below), whose sum is σ = 86293116. Its totient is φ = 84531840.

The previous prime is 85412473. The next prime is 85412497. The reversal of 85412477 is 77421458.

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 52911076 + 32501401 = 7274^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 85412477 - 2² = 85412473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85412477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85412473) 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, 440174 + ... + 440367.

It is an arithmetic number, because the mean of its divisors is an integer number (21573279).

Almost surely, 2^85412477 is an apocalyptic number.

It is an amenable number.

85412477 is a deficient number, since it is larger than the sum of its proper divisors (880639).

85412477 is an equidigital number, since it uses as much as digits as its factorization.

85412477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880638.

The product of its digits is 62720, while the sum is 38.

The square root of 85412477 is about 9241.8870908489. The cubic root of 85412477 is about 440.3930320822.

It can be divided in two parts, 854 and 12477, that added together give a palindrome (13331).

The spelling of 85412477 in words is "eighty-five million, four hundred twelve thousand, four hundred seventy-seven".