67748720 has 60 divisors (see below), whose sum is σ = 170598456. Its totient is φ = 25009920.

The previous prime is 67748719. The next prime is 67748743. The reversal of 67748720 is 2784776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11015 + ... + 16025.

Almost surely, 2^67748720 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 67748720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85299228).

67748720 is an abundant number, since it is smaller than the sum of its proper divisors (102849736).

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

67748720 is a wasteful number, since it uses less digits than its factorization.

67748720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050 (or 5031 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 67748720 is about 8230.9610617473. The cubic root of 67748720 is about 407.6621257608.

The spelling of 67748720 in words is "sixty-seven million, seven hundred forty-eight thousand, seven hundred twenty".