67066772 has 24 divisors (see below), whose sum is σ = 118779360. Its totient is φ = 33132960.

The previous prime is 67066771. The next prime is 67066777. The reversal of 67066772 is 27766076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67066771) 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, 193103 + ... + 193449.

It is an arithmetic number, because the mean of its divisors is an integer number (4949140).

Almost surely, 2^67066772 is an apocalyptic number.

It is an amenable number.

67066772 is a deficient number, since it is larger than the sum of its proper divisors (51712588).

67066772 is a wasteful number, since it uses less digits than its factorization.

67066772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 67066772 is about 8189.4305052305. The cubic root of 67066772 is about 406.2896894714.

The spelling of 67066772 in words is "sixty-seven million, sixty-six thousand, seven hundred seventy-two".