74353939 has 4 divisors (see below), whose sum is σ = 81113400. Its totient is φ = 67594480.

The previous prime is 74353933. The next prime is 74353943. The reversal of 74353939 is 93935347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74353939 - 2¹¹ = 74351891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74353895 and 74353904.

It is not an unprimeable number, because it can be changed into a prime (74353933) 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 3 ways as a sum of consecutive naturals, for example, 3379714 + ... + 3379735.

It is an arithmetic number, because the mean of its divisors is an integer number (20278350).

Almost surely, 2^74353939 is an apocalyptic number.

74353939 is a deficient number, since it is larger than the sum of its proper divisors (6759461).

74353939 is a wasteful number, since it uses less digits than its factorization.

74353939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759460.

The product of its digits is 306180, while the sum is 43.

The square root of 74353939 is about 8622.8730130972. The cubic root of 74353939 is about 420.5019301528.

The spelling of 74353939 in words is "seventy-four million, three hundred fifty-three thousand, nine hundred thirty-nine".