74863828 has 24 divisors (see below), whose sum is σ = 141490440. Its totient is φ = 34454400.

The previous prime is 74863823. The next prime is 74863849. The reversal of 74863828 is 82836847.

It can be written as a sum of positive squares in 4 ways, for example, as 6724 + 74857104 = 82^2 + 8652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74863823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18378 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (5895435).

Almost surely, 2^74863828 is an apocalyptic number.

It is an amenable number.

74863828 is a deficient number, since it is larger than the sum of its proper divisors (66626612).

74863828 is a wasteful number, since it uses less digits than its factorization.

74863828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4105 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 74863828 is about 8652.3885719494. The cubic root of 74863828 is about 421.4609515564.

The spelling of 74863828 in words is "seventy-four million, eight hundred sixty-three thousand, eight hundred twenty-eight".