68987448 has 24 divisors (see below), whose sum is σ = 186841200. Its totient is φ = 22995792.

The previous prime is 68987441. The next prime is 68987453. The reversal of 68987448 is 84478986.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 68987394 and 68987403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68987441) 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 5 ways as a sum of consecutive naturals, for example, 479008 + ... + 479151.

It is an arithmetic number, because the mean of its divisors is an integer number (7785050).

Almost surely, 2^68987448 is an apocalyptic number.

It is an amenable number.

68987448 is an abundant number, since it is smaller than the sum of its proper divisors (117853752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68987448 is a wasteful number, since it uses less digits than its factorization.

68987448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958171 (or 958164 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68987448 is about 8305.8682869403. The cubic root of 68987448 is about 410.1317205173.

The spelling of 68987448 in words is "sixty-eight million, nine hundred eighty-seven thousand, four hundred forty-eight".