49173321 has 4 divisors (see below), whose sum is σ = 65564432. Its totient is φ = 32782212.

The previous prime is 49173283. The next prime is 49173323. The reversal of 49173321 is 12337194.

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 not a de Polignac number, because 49173321 - 2¹⁹ = 48649033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49173323) 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, 8195551 + ... + 8195556.

It is an arithmetic number, because the mean of its divisors is an integer number (16391108).

Almost surely, 2^49173321 is an apocalyptic number.

It is an amenable number.

49173321 is a deficient number, since it is larger than the sum of its proper divisors (16391111).

49173321 is a wasteful number, since it uses less digits than its factorization.

49173321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16391110.

The product of its digits is 4536, while the sum is 30.

The square root of 49173321 is about 7012.3691431641. The cubic root of 49173321 is about 366.3615153519.

It can be divided in two parts, 49173 and 321, that added together give a palindrome (49494).

The spelling of 49173321 in words is "forty-nine million, one hundred seventy-three thousand, three hundred twenty-one".