67989011 has 8 divisors (see below), whose sum is σ = 71761920. Its totient is φ = 64235592.

The previous prime is 67988981. The next prime is 67989013. The reversal of 67989011 is 11098976.

67989011 = T₃₉₄ + T₃₉₅ + ... + T₇₇₆.

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 a de Polignac number, because none of the positive numbers 2^k-67989011 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 67989011.

It is not an unprimeable number, because it can be changed into a prime (67989013) 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, 2606 + ... + 11948.

It is an arithmetic number, because the mean of its divisors is an integer number (8970240).

Almost surely, 2^67989011 is an apocalyptic number.

67989011 is a deficient number, since it is larger than the sum of its proper divisors (3772909).

67989011 is a wasteful number, since it uses less digits than its factorization.

67989011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9745.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 67989011 is about 8245.5449183180. The cubic root of 67989011 is about 408.1435220916.

The spelling of 67989011 in words is "sixty-seven million, nine hundred eighty-nine thousand, eleven".