48907309 has 4 divisors (see below), whose sum is σ = 53353440. Its totient is φ = 44461180.

The previous prime is 48907291. The next prime is 48907321. The reversal of 48907309 is 90370984.

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 48907309 - 2⁹ = 48906797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48907379) 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, 2223049 + ... + 2223070.

It is an arithmetic number, because the mean of its divisors is an integer number (13338360).

Almost surely, 2^48907309 is an apocalyptic number.

It is an amenable number.

48907309 is a deficient number, since it is larger than the sum of its proper divisors (4446131).

48907309 is a wasteful number, since it uses less digits than its factorization.

48907309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446130.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 48907309 is about 6993.3760802634. The cubic root of 48907309 is about 365.6996874622.

The spelling of 48907309 in words is "forty-eight million, nine hundred seven thousand, three hundred nine".