67866752 has 16 divisors (see below), whose sum is σ = 135203550. Its totient is φ = 33933312.

The previous prime is 67866751. The next prime is 67866763. The reversal of 67866752 is 25766876.

It can be written as a sum of positive squares in only one way, i.e., 35331136 + 32535616 = 5944^2 + 5704^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 67866697 and 67866706.

It is not an unprimeable number, because it can be changed into a prime (67866751) by changing a digit.

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 as a sum of consecutive naturals, namely, 264977 + ... + 265232.

Almost surely, 2^67866752 is an apocalyptic number.

It is an amenable number.

67866752 is a deficient number, since it is larger than the sum of its proper divisors (67336798).

67866752 is an equidigital number, since it uses as much as digits as its factorization.

67866752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530223 (or 530211 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 67866752 is about 8238.1279426821. The cubic root of 67866752 is about 407.8987317550.

The spelling of 67866752 in words is "sixty-seven million, eight hundred sixty-six thousand, seven hundred fifty-two".