68750000 has 90 divisors (see below), whose sum is σ = 181640532. Its totient is φ = 25000000.

The previous prime is 68749969. The next prime is 68750021. The reversal of 68750000 is 5786.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6249995 + ... + 6250005.

Almost surely, 2^68750000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90820266).

68750000 is an abundant number, since it is smaller than the sum of its proper divisors (112890532).

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

68750000 is an frugal number, since it uses more digits than its factorization.

68750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 68750000 is about 8291.5619758885. The cubic root of 68750000 is about 409.6606353003.

Adding to 68750000 its reverse (5786), we get a palindrome (68755786).

The spelling of 68750000 in words is "sixty-eight million, seven hundred fifty thousand".