74772066 has 8 divisors (see below), whose sum is σ = 149544144. Its totient is φ = 24924020.

The previous prime is 74772053. The next prime is 74772073. The reversal of 74772066 is 66027747.

It is a happy number.

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

74772066 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6231000 + ... + 6231011.

It is an arithmetic number, because the mean of its divisors is an integer number (18693018).

Almost surely, 2^74772066 is an apocalyptic number.

74772066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74772066 is a wasteful number, since it uses less digits than its factorization.

74772066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462016.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 74772066 is about 8647.0842484620. The cubic root of 74772066 is about 421.2886836186.

The spelling of 74772066 in words is "seventy-four million, seven hundred seventy-two thousand, sixty-six".