74006649 has 8 divisors (see below), whose sum is σ = 109639520. Its totient is φ = 49337748.

The previous prime is 74006609. The next prime is 74006677. The reversal of 74006649 is 94660047.

74006649 is a `hidden beast` number, since 7 + 4 + 0 + 0 + 6 + 649 = 666.

It is not a de Polignac number, because 74006649 - 2⁹ = 74006137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74006609) 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 7 ways as a sum of consecutive naturals, for example, 1370467 + ... + 1370520.

It is an arithmetic number, because the mean of its divisors is an integer number (13704940).

Almost surely, 2^74006649 is an apocalyptic number.

It is an amenable number.

74006649 is a deficient number, since it is larger than the sum of its proper divisors (35632871).

74006649 is a wasteful number, since it uses less digits than its factorization.

74006649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740996 (or 2740990 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 74006649 is about 8602.7117236369. The cubic root of 74006649 is about 419.8462192110.

The spelling of 74006649 in words is "seventy-four million, six thousand, six hundred forty-nine".