67008997 has 4 divisors (see below), whose sum is σ = 73100736. Its totient is φ = 60917260.

The previous prime is 67008983. The next prime is 67009001. The reversal of 67008997 is 79980076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67008997 - 2¹⁵ = 66976229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67008967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045853 + ... + 3045874.

It is an arithmetic number, because the mean of its divisors is an integer number (18275184).

Almost surely, 2^67008997 is an apocalyptic number.

It is an amenable number.

67008997 is a deficient number, since it is larger than the sum of its proper divisors (6091739).

67008997 is a wasteful number, since it uses less digits than its factorization.

67008997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091738.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 67008997 is about 8185.9023326693. The cubic root of 67008997 is about 406.1729892051.

The spelling of 67008997 in words is "sixty-seven million, eight thousand, nine hundred ninety-seven".