74701321 has 4 divisors (see below), whose sum is σ = 74967444. Its totient is φ = 74435200.

The previous prime is 74701307. The next prime is 74701339. The reversal of 74701321 is 12310747.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12310747 = 89 ⋅138323.

It can be written as a sum of positive squares in 2 ways, for example, as 57153600 + 17547721 = 7560^2 + 4189^2 .

It is a cyclic number.

It is not a de Polignac number, because 74701321 - 2⁹ = 74700809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74701391) 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, 132640 + ... + 133201.

It is an arithmetic number, because the mean of its divisors is an integer number (18741861).

Almost surely, 2^74701321 is an apocalyptic number.

It is an amenable number.

74701321 is a deficient number, since it is larger than the sum of its proper divisors (266123).

74701321 is a wasteful number, since it uses less digits than its factorization.

74701321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266122.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 74701321 is about 8642.9925951605. The cubic root of 74701321 is about 421.1557753723.

The spelling of 74701321 in words is "seventy-four million, seven hundred one thousand, three hundred twenty-one".