74047909 has 8 divisors (see below), whose sum is σ = 79903712. Its totient is φ = 68214960.

The previous prime is 74047907. The next prime is 74047949. The reversal of 74047909 is 90974047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74047909 - 2¹ = 74047907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74047901) 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, 1354 + ... + 12244.

It is an arithmetic number, because the mean of its divisors is an integer number (9987964).

Almost surely, 2^74047909 is an apocalyptic number.

It is an amenable number.

74047909 is a deficient number, since it is larger than the sum of its proper divisors (5855803).

74047909 is a wasteful number, since it uses less digits than its factorization.

74047909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11427.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 74047909 is about 8605.1094705413. The cubic root of 74047909 is about 419.9242285835.

The spelling of 74047909 in words is "seventy-four million, forty-seven thousand, nine hundred nine".