74789648 has 10 divisors (see below), whose sum is σ = 144904974. Its totient is φ = 37394816.

The previous prime is 74789593. The next prime is 74789657. The reversal of 74789648 is 84698747.

It can be written as a sum of positive squares in only one way, i.e., 73068304 + 1721344 = 8548^2 + 1312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74789648.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2337161 + ... + 2337192.

Almost surely, 2^74789648 is an apocalyptic number.

It is an amenable number.

74789648 is a deficient number, since it is larger than the sum of its proper divisors (70115326).

74789648 is a wasteful number, since it uses less digits than its factorization.

74789648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674361 (or 4674355 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 74789648 is about 8648.1008319746. The cubic root of 74789648 is about 421.3217018189.

Subtracting 74789648 from its reverse (84698747), we obtain a palindrome (9909099).

The spelling of 74789648 in words is "seventy-four million, seven hundred eighty-nine thousand, six hundred forty-eight".