74550789 has 12 divisors (see below), whose sum is σ = 109976256. Its totient is φ = 48642792.

The previous prime is 74550787. The next prime is 74550811. The reversal of 74550789 is 98705547.

It is not a de Polignac number, because 74550789 - 2¹ = 74550787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74550787) 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 11 ways as a sum of consecutive naturals, for example, 87699 + ... + 88544.

It is an arithmetic number, because the mean of its divisors is an integer number (9164688).

Almost surely, 2^74550789 is an apocalyptic number.

It is an amenable number.

74550789 is a deficient number, since it is larger than the sum of its proper divisors (35425467).

74550789 is a wasteful number, since it uses less digits than its factorization.

74550789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176296 (or 176293 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 74550789 is about 8634.2798773262. The cubic root of 74550789 is about 420.8726922331.

The spelling of 74550789 in words is "seventy-four million, five hundred fifty thousand, seven hundred eighty-nine".