74985892 has 12 divisors (see below), whose sum is σ = 133023436. Its totient is φ = 36979200.

The previous prime is 74985877. The next prime is 74985893. The reversal of 74985892 is 29858947.

It can be written as a sum of positive squares in 2 ways, for example, as 26460736 + 48525156 = 5144^2 + 6966^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (74985893) 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 3 ways as a sum of consecutive naturals, for example, 128109 + ... + 128692.

Almost surely, 2^74985892 is an apocalyptic number.

It is an amenable number.

74985892 is a deficient number, since it is larger than the sum of its proper divisors (58037544).

74985892 is a wasteful number, since it uses less digits than its factorization.

74985892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256878 (or 256876 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 74985892 is about 8659.4394737766. The cubic root of 74985892 is about 421.6898884415.

The spelling of 74985892 in words is "seventy-four million, nine hundred eighty-five thousand, eight hundred ninety-two".