67989950 has 36 divisors (see below), whose sum is σ = 147113352. Its totient is φ = 23310000.

The previous prime is 67989907. The next prime is 67989959. The reversal of 67989950 is 5998976.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67989892 and 67989901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67989959) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11426 + ... + 16325.

It is an arithmetic number, because the mean of its divisors is an integer number (4086482).

Almost surely, 2^67989950 is an apocalyptic number.

67989950 is an abundant number, since it is smaller than the sum of its proper divisors (79123402).

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

67989950 is a wasteful number, since it uses less digits than its factorization.

67989950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27777 (or 27765 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 67989950 is about 8245.6018579604. The cubic root of 67989950 is about 408.1454010472.

The spelling of 67989950 in words is "sixty-seven million, nine hundred eighty-nine thousand, nine hundred fifty".