87868148 has 6 divisors (see below), whose sum is σ = 153769266. Its totient is φ = 43934072.

The previous prime is 87868147. The next prime is 87868153. The reversal of 87868148 is 84186878.

It can be written as a sum of positive squares in only one way, i.e., 66227044 + 21641104 = 8138^2 + 4652^2 .

It is a super-2 number, since 2×87868148² = 15441622865899808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87868096 and 87868105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87868147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10983515 + ... + 10983522.

It is an arithmetic number, because the mean of its divisors is an integer number (25628211).

Almost surely, 2^87868148 is an apocalyptic number.

It is an amenable number.

87868148 is a deficient number, since it is larger than the sum of its proper divisors (65901118).

87868148 is a wasteful number, since it uses less digits than its factorization.

87868148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21967041 (or 21967039 counting only the distinct ones).

The product of its digits is 688128, while the sum is 50.

The square root of 87868148 is about 9373.8011500138. The cubic root of 87868148 is about 444.5737584179.

The spelling of 87868148 in words is "eighty-seven million, eight hundred sixty-eight thousand, one hundred forty-eight".