74429937 has 6 divisors (see below), whose sum is σ = 107509922. Its totient is φ = 49619952.

The previous prime is 74429933. The next prime is 74429951. The reversal of 74429937 is 73992447.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 194481 = 8616^2 + 441^2 .

It is not a de Polignac number, because 74429937 - 2² = 74429933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74429892 and 74429901.

It is not an unprimeable number, because it can be changed into a prime (74429933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4134988 + ... + 4135005.

Almost surely, 2^74429937 is an apocalyptic number.

It is an amenable number.

74429937 is a deficient number, since it is larger than the sum of its proper divisors (33079985).

74429937 is a wasteful number, since it uses less digits than its factorization.

74429937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269999 (or 8269996 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 74429937 is about 8627.2786555205. The cubic root of 74429937 is about 420.6451479582.

The spelling of 74429937 in words is "seventy-four million, four hundred twenty-nine thousand, nine hundred thirty-seven".