67989150 has 72 divisors (see below), whose sum is σ = 190635120. Its totient is φ = 17339520.

The previous prime is 67989139. The next prime is 67989151. The reversal of 67989150 is 5198976.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67989096 and 67989105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67989151) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7066 + ... + 13634.

It is an arithmetic number, because the mean of its divisors is an integer number (2647710).

Almost surely, 2^67989150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67989150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95317560).

67989150 is an abundant number, since it is smaller than the sum of its proper divisors (122645970).

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

67989150 is a wasteful number, since it uses less digits than its factorization.

67989150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610 (or 6602 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 67989150 is about 8245.5533471078. The cubic root of 67989150 is about 408.1438002342.

The spelling of 67989150 in words is "sixty-seven million, nine hundred eighty-nine thousand, one hundred fifty".