67520704 has 28 divisors (see below), whose sum is σ = 135229600. Its totient is φ = 33447168.

The previous prime is 67520653. The next prime is 67520741. The reversal of 67520704 is 40702576.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137 + ... + 11815.

Almost surely, 2^67520704 is an apocalyptic number.

67520704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67520704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67614800).

67520704 is an abundant number, since it is smaller than the sum of its proper divisors (67708896).

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

67520704 is a wasteful number, since it uses less digits than its factorization.

67520704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800 (or 9790 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 67520704 is about 8217.0982712877. The cubic root of 67520704 is about 407.2042673466.

The spelling of 67520704 in words is "sixty-seven million, five hundred twenty thousand, seven hundred four".