74587321 has 8 divisors (see below), whose sum is σ = 78401664. Its totient is φ = 70820640.

The previous prime is 74587291. The next prime is 74587343. The reversal of 74587321 is 12378547.

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 74587321 - 2⁷ = 74587193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74587351) 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, 8685 + ... + 14986.

It is an arithmetic number, because the mean of its divisors is an integer number (9800208).

Almost surely, 2^74587321 is an apocalyptic number.

It is an amenable number.

74587321 is a deficient number, since it is larger than the sum of its proper divisors (3814343).

74587321 is a wasteful number, since it uses less digits than its factorization.

74587321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831.

The product of its digits is 47040, while the sum is 37.

The square root of 74587321 is about 8636.3951391770. The cubic root of 74587321 is about 420.9414275237.

The spelling of 74587321 in words is "seventy-four million, five hundred eighty-seven thousand, three hundred twenty-one".