67120866 has 16 divisors (see below), whose sum is σ = 149157600. Its totient is φ = 22373604.

The previous prime is 67120861. The next prime is 67120871. The reversal of 67120866 is 66802176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67120861) and next prime (67120871).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67120866.

It is not an unprimeable number, because it can be changed into a prime (67120861) 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, 621436 + ... + 621543.

It is an arithmetic number, because the mean of its divisors is an integer number (9322350).

Almost surely, 2^67120866 is an apocalyptic number.

67120866 is an abundant number, since it is smaller than the sum of its proper divisors (82036734).

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

67120866 is a wasteful number, since it uses less digits than its factorization.

67120866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242990 (or 1242984 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 67120866 is about 8192.7325111955. The cubic root of 67120866 is about 406.3988937146.

The spelling of 67120866 in words is "sixty-seven million, one hundred twenty thousand, eight hundred sixty-six".