67988697 has 8 divisors (see below), whose sum is σ = 103601856. Its totient is φ = 38850672.

The previous prime is 67988681. The next prime is 67988717. The reversal of 67988697 is 79688976.

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

It is not a de Polignac number, because 67988697 - 2⁴ = 67988681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67988697.

It is not an unprimeable number, because it can be changed into a prime (67987697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618758 + ... + 1618799.

It is an arithmetic number, because the mean of its divisors is an integer number (12950232).

Almost surely, 2^67988697 is an apocalyptic number.

It is an amenable number.

67988697 is a deficient number, since it is larger than the sum of its proper divisors (35613159).

67988697 is a wasteful number, since it uses less digits than its factorization.

67988697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237567.

The product of its digits is 9144576, while the sum is 60.

The square root of 67988697 is about 8245.5258777109. The cubic root of 67988697 is about 408.1428937682.

The spelling of 67988697 in words is "sixty-seven million, nine hundred eighty-eight thousand, six hundred ninety-seven".