82774148 has 12 divisors (see below), whose sum is σ = 151152960. Its totient is φ = 39587592.

The previous prime is 82774147. The next prime is 82774151. The reversal of 82774148 is 84147728.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82774141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449768 + ... + 449951.

It is an arithmetic number, because the mean of its divisors is an integer number (12596080).

Almost surely, 2^82774148 is an apocalyptic number.

It is an amenable number.

82774148 is a deficient number, since it is larger than the sum of its proper divisors (68378812).

82774148 is a wasteful number, since it uses less digits than its factorization.

82774148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899746 (or 899744 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 82774148 is about 9098.0298966315. The cubic root of 82774148 is about 435.8110521516.

The spelling of 82774148 in words is "eighty-two million, seven hundred seventy-four thousand, one hundred forty-eight".