74564712 has 80 divisors (see below), whose sum is σ = 217974240. Its totient is φ = 23769504.

The previous prime is 74564671. The next prime is 74564717. The reversal of 74564712 is 21746547.

74564712 is a `hidden beast` number, since 7 + 4 + 5 + 647 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74564717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12403 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (2724678).

Almost surely, 2^74564712 is an apocalyptic number.

74564712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74564712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108987120).

74564712 is an abundant number, since it is smaller than the sum of its proper divisors (143409528).

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

74564712 is a wasteful number, since it uses less digits than its factorization.

74564712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5031 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 74564712 is about 8635.0861026396. The cubic root of 74564712 is about 420.8988911320.

The spelling of 74564712 in words is "seventy-four million, five hundred sixty-four thousand, seven hundred twelve".