85777148 has 6 divisors (see below), whose sum is σ = 150110016. Its totient is φ = 42888572.

The previous prime is 85777147. The next prime is 85777177. The reversal of 85777148 is 84177758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85777147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10722140 + ... + 10722147.

It is an arithmetic number, because the mean of its divisors is an integer number (25018336).

Almost surely, 2^85777148 is an apocalyptic number.

It is an amenable number.

85777148 is a deficient number, since it is larger than the sum of its proper divisors (64332868).

85777148 is a wasteful number, since it uses less digits than its factorization.

85777148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21444291 (or 21444289 counting only the distinct ones).

The product of its digits is 439040, while the sum is 47.

The square root of 85777148 is about 9261.5953269402. The cubic root of 85777148 is about 441.0188990655.

The spelling of 85777148 in words is "eighty-five million, seven hundred seventy-seven thousand, one hundred forty-eight".