74011321 has 4 divisors (see below), whose sum is σ = 74060532. Its totient is φ = 73962112.

The previous prime is 74011313. The next prime is 74011331. The reversal of 74011321 is 12311047.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29855296 + 44156025 = 5464^2 + 6645^2 .

It is a cyclic number.

It is not a de Polignac number, because 74011321 - 2³ = 74011313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74011331) 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, 22276 + ... + 25381.

It is an arithmetic number, because the mean of its divisors is an integer number (18515133).

Almost surely, 2^74011321 is an apocalyptic number.

It is an amenable number.

74011321 is a deficient number, since it is larger than the sum of its proper divisors (49211).

74011321 is a wasteful number, since it uses less digits than its factorization.

74011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49210.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 74011321 is about 8602.9832616366. The cubic root of 74011321 is about 419.8550539139.

Adding to 74011321 its reverse (12311047), we get a palindrome (86322368).

The spelling of 74011321 in words is "seventy-four million, eleven thousand, three hundred twenty-one".