4993506321 has 4 divisors (see below), whose sum is σ = 6658008432. Its totient is φ = 3329004212.

The previous prime is 4993506293. The next prime is 4993506367. The reversal of 4993506321 is 1236053994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4993506321 - 2¹⁵ = 4993473553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4993502321) 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, 832251051 + ... + 832251056.

It is an arithmetic number, because the mean of its divisors is an integer number (1664502108).

Almost surely, 2^4993506321 is an apocalyptic number.

It is an amenable number.

4993506321 is a deficient number, since it is larger than the sum of its proper divisors (1664502111).

4993506321 is a wasteful number, since it uses less digits than its factorization.

4993506321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664502110.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 4993506321 is about 70664.7459558159. The cubic root of 4993506321 is about 1709.2353569810.

The spelling of 4993506321 in words is "four billion, nine hundred ninety-three million, five hundred six thousand, three hundred twenty-one".