67749606 has 12 divisors (see below), whose sum is σ = 146790852. Its totient is φ = 22583196.

The previous prime is 67749571. The next prime is 67749613. The reversal of 67749606 is 60694776.

It is a super-2 number, since 2×67749606² = 9180018226310472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1881916 + ... + 1881951.

It is an arithmetic number, because the mean of its divisors is an integer number (12232571).

Almost surely, 2^67749606 is an apocalyptic number.

67749606 is an abundant number, since it is smaller than the sum of its proper divisors (79041246).

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

67749606 is a wasteful number, since it uses less digits than its factorization.

67749606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763875 (or 3763872 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 67749606 is about 8231.0148827468. The cubic root of 67749606 is about 407.6639028526.

The spelling of 67749606 in words is "sixty-seven million, seven hundred forty-nine thousand, six hundred six".