74103409 has 4 divisors (see below), whose sum is σ = 74268900. Its totient is φ = 73937920.

The previous prime is 74103373. The next prime is 74103413. The reversal of 74103409 is 90430147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90430147 = 3253 ⋅27799.

It can be written as a sum of positive squares in 2 ways, for example, as 56295009 + 17808400 = 7503^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 74103409 - 2²³ = 65714801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74103499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82072 + ... + 82969.

It is an arithmetic number, because the mean of its divisors is an integer number (18567225).

Almost surely, 2^74103409 is an apocalyptic number.

It is an amenable number.

74103409 is a deficient number, since it is larger than the sum of its proper divisors (165491).

74103409 is a wasteful number, since it uses less digits than its factorization.

74103409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165490.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 74103409 is about 8608.3336947402. Note that the first 3 decimals coincide. The cubic root of 74103409 is about 420.0291155175.

The spelling of 74103409 in words is "seventy-four million, one hundred three thousand, four hundred nine".