49321993 has 4 divisors (see below), whose sum is σ = 56368000. Its totient is φ = 42275988.

The previous prime is 49321969. The next prime is 49321997. The reversal of 49321993 is 39912394.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39912394 = 2 ⋅19956197.

It is a cyclic number.

It is not a de Polignac number, because 49321993 - 2¹³ = 49313801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49321997) 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, 3522993 + ... + 3523006.

It is an arithmetic number, because the mean of its divisors is an integer number (14092000).

Almost surely, 2^49321993 is an apocalyptic number.

It is an amenable number.

49321993 is a deficient number, since it is larger than the sum of its proper divisors (7046007).

49321993 is an equidigital number, since it uses as much as digits as its factorization.

49321993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046006.

The product of its digits is 52488, while the sum is 40.

The square root of 49321993 is about 7022.9618395660. The cubic root of 49321993 is about 366.7303664353.

The spelling of 49321993 in words is "forty-nine million, three hundred twenty-one thousand, nine hundred ninety-three".