67875666 has 16 divisors (see below), whose sum is σ = 136094688. Its totient is φ = 22568000.

The previous prime is 67875641. The next prime is 67875667. The reversal of 67875666 is 66657876.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67875667) 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, 11700 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (8505918).

Almost surely, 2^67875666 is an apocalyptic number.

67875666 is an abundant number, since it is smaller than the sum of its proper divisors (68219022).

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

67875666 is a wasteful number, since it uses less digits than its factorization.

67875666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28617.

The product of its digits is 2540160, while the sum is 51.

The square root of 67875666 is about 8238.6689458917. The cubic root of 67875666 is about 407.9165895426.

The spelling of 67875666 in words is "sixty-seven million, eight hundred seventy-five thousand, six hundred sixty-six".