74004605 has 4 divisors (see below), whose sum is σ = 88805532. Its totient is φ = 59203680.

The previous prime is 74004599. The next prime is 74004611. The reversal of 74004605 is 50640047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50640047 = 4013 ⋅12619.

It is an interprime number because it is at equal distance from previous prime (74004599) and next prime (74004611).

It can be written as a sum of positive squares in 2 ways, for example, as 27478564 + 46526041 = 5242^2 + 6821^2 .

It is not a de Polignac number, because 74004605 - 2¹⁴ = 73988221 is a prime.

It is a super-2 number, since 2×74004605² = 10953363122412050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7400456 + ... + 7400465.

It is an arithmetic number, because the mean of its divisors is an integer number (22201383).

Almost surely, 2^74004605 is an apocalyptic number.

It is an amenable number.

74004605 is a deficient number, since it is larger than the sum of its proper divisors (14800927).

74004605 is a wasteful number, since it uses less digits than its factorization.

74004605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800926.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 74004605 is about 8602.5929230669. The cubic root of 74004605 is about 419.8423539116.

The spelling of 74004605 in words is "seventy-four million, four thousand, six hundred five".