48313309 has 4 divisors (see below), whose sum is σ = 52705440. Its totient is φ = 43921180.

The previous prime is 48313301. The next prime is 48313313. The reversal of 48313309 is 90331384.

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 48313309 - 2³ = 48313301 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48313301) 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, 2196049 + ... + 2196070.

It is an arithmetic number, because the mean of its divisors is an integer number (13176360).

Almost surely, 2^48313309 is an apocalyptic number.

It is an amenable number.

48313309 is a deficient number, since it is larger than the sum of its proper divisors (4392131).

48313309 is a wasteful number, since it uses less digits than its factorization.

48313309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392130.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 48313309 is about 6950.7775824004. Note that the first 3 decimals coincide. The cubic root of 48313309 is about 364.2131269078.

The spelling of 48313309 in words is "forty-eight million, three hundred thirteen thousand, three hundred nine".