68667488 has 24 divisors (see below), whose sum is σ = 143142552. Its totient is φ = 32313856.

The previous prime is 68667481. The next prime is 68667491. The reversal of 68667488 is 88476686.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68667481) 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, 62570 + ... + 63657.

It is an arithmetic number, because the mean of its divisors is an integer number (5964273).

Almost surely, 2^68667488 is an apocalyptic number.

68667488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68667488 is an abundant number, since it is smaller than the sum of its proper divisors (74475064).

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

68667488 is a wasteful number, since it uses less digits than its factorization.

68667488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126254 (or 126246 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 68667488 is about 8286.5848212638. The cubic root of 68667488 is about 409.4966816029.

The spelling of 68667488 in words is "sixty-eight million, six hundred sixty-seven thousand, four hundred eighty-eight".