73666768 has 40 divisors (see below), whose sum is σ = 165570752. Its totient is φ = 31097088.

The previous prime is 73666759. The next prime is 73666787. The reversal of 73666768 is 86766637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596 + ... + 12412.

Almost surely, 2^73666768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73666768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82785376).

73666768 is an abundant number, since it is smaller than the sum of its proper divisors (91903984).

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

73666768 is a wasteful number, since it uses less digits than its factorization.

73666768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9899 (or 9893 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 49.

The square root of 73666768 is about 8582.9346962446. The cubic root of 73666768 is about 419.2025078517.

The spelling of 73666768 in words is "seventy-three million, six hundred sixty-six thousand, seven hundred sixty-eight".