74197892 has 12 divisors (see below), whose sum is σ = 134323980. Its totient is φ = 35819616.

The previous prime is 74197861. The next prime is 74197897. The reversal of 74197892 is 29879147.

It can be written as a sum of positive squares in 2 ways, for example, as 43903876 + 30294016 = 6626^2 + 5504^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74197897) 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, 319703 + ... + 319934.

It is an arithmetic number, because the mean of its divisors is an integer number (11193665).

Almost surely, 2^74197892 is an apocalyptic number.

It is an amenable number.

74197892 is a deficient number, since it is larger than the sum of its proper divisors (60126088).

74197892 is a wasteful number, since it uses less digits than its factorization.

74197892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639670 (or 639668 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The square root of 74197892 is about 8613.8198263024. The cubic root of 74197892 is about 420.2075542551.

The spelling of 74197892 in words is "seventy-four million, one hundred ninety-seven thousand, eight hundred ninety-two".