67120685 has 8 divisors (see below), whose sum is σ = 81450360. Its totient is φ = 53092864.

The previous prime is 67120681. The next prime is 67120699. The reversal of 67120685 is 58602176.

It can be written as a sum of positive squares in 4 ways, for example, as 15697444 + 51423241 = 3962^2 + 7171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67120685 - 2² = 67120681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67120681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74972 + ... + 75861.

It is an arithmetic number, because the mean of its divisors is an integer number (10181295).

Almost surely, 2^67120685 is an apocalyptic number.

It is an amenable number.

67120685 is a deficient number, since it is larger than the sum of its proper divisors (14329675).

67120685 is a wasteful number, since it uses less digits than its factorization.

67120685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150927.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 67120685 is about 8192.7214648125. The cubic root of 67120685 is about 406.3985284120.

The spelling of 67120685 in words is "sixty-seven million, one hundred twenty thousand, six hundred eighty-five".