87968444 has 12 divisors (see below), whose sum is σ = 154114968. Its totient is φ = 43935600.

The previous prime is 87968429. The next prime is 87968449. The reversal of 87968444 is 44486978.

It is a super-2 number, since 2×87968444² = 15476894279562272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87968392 and 87968401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87968449) 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, 7922 + ... + 15449.

It is an arithmetic number, because the mean of its divisors is an integer number (12842914).

Almost surely, 2^87968444 is an apocalyptic number.

It is an amenable number.

87968444 is a deficient number, since it is larger than the sum of its proper divisors (66146524).

87968444 is a wasteful number, since it uses less digits than its factorization.

87968444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24316 (or 24314 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 87968444 is about 9379.1494283864. The cubic root of 87968444 is about 444.7428451547.

The spelling of 87968444 in words is "eighty-seven million, nine hundred sixty-eight thousand, four hundred forty-four".