67999001 has 8 divisors (see below), whose sum is σ = 77764224. Its totient is φ = 58246560.

The previous prime is 67998977. The next prime is 67999003. The reversal of 67999001 is 10099976.

It is a happy number.

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 67999001 - 2¹⁴ = 67982617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67999001.

It is not an unprimeable number, because it can be changed into a prime (67999003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15581 + ... + 19461.

It is an arithmetic number, because the mean of its divisors is an integer number (9720528).

Almost surely, 2^67999001 is an apocalyptic number.

It is an amenable number.

67999001 is a deficient number, since it is larger than the sum of its proper divisors (9765223).

67999001 is a wasteful number, since it uses less digits than its factorization.

67999001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 67999001 is about 8246.1506777405. The cubic root of 67999001 is about 408.1635113714.

The spelling of 67999001 in words is "sixty-seven million, nine hundred ninety-nine thousand, one".