73666966 has 8 divisors (see below), whose sum is σ = 110539224. Its totient is φ = 36820560.

The previous prime is 73666961. The next prime is 73666993. The reversal of 73666966 is 66966637.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73666961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4146 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (13817403).

Almost surely, 2^73666966 is an apocalyptic number.

73666966 is a deficient number, since it is larger than the sum of its proper divisors (36872258).

73666966 is a wasteful number, since it uses less digits than its factorization.

73666966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12926.

The product of its digits is 1469664, while the sum is 49.

The square root of 73666966 is about 8582.9462307532. The cubic root of 73666966 is about 419.2028834259.

The spelling of 73666966 in words is "seventy-three million, six hundred sixty-six thousand, nine hundred sixty-six".