85577486 has 4 divisors (see below), whose sum is σ = 128366232. Its totient is φ = 42788742.

The previous prime is 85577477. The next prime is 85577489. The reversal of 85577486 is 68477558.

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

It is a super-2 number, since 2×85577486² = 14647012220160392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85577489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21394370 + ... + 21394373.

It is an arithmetic number, because the mean of its divisors is an integer number (32091558).

Almost surely, 2^85577486 is an apocalyptic number.

85577486 is a deficient number, since it is larger than the sum of its proper divisors (42788746).

85577486 is a wasteful number, since it uses less digits than its factorization.

85577486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42788745.

The product of its digits is 1881600, while the sum is 50.

The square root of 85577486 is about 9250.8100185876. The cubic root of 85577486 is about 440.6764491740.

The spelling of 85577486 in words is "eighty-five million, five hundred seventy-seven thousand, four hundred eighty-six".