48657409 has 4 divisors (see below), whose sum is σ = 48705280. Its totient is φ = 48609540.

The previous prime is 48657407. The next prime is 48657419. The reversal of 48657409 is 90475684.

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 48657409 - 2¹ = 48657407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48657403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22377 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (12176320).

Almost surely, 2^48657409 is an apocalyptic number.

It is an amenable number.

48657409 is a deficient number, since it is larger than the sum of its proper divisors (47871).

48657409 is a wasteful number, since it uses less digits than its factorization.

48657409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47870.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 48657409 is about 6975.4862912918. The cubic root of 48657409 is about 365.0757558402.

The spelling of 48657409 in words is "forty-eight million, six hundred fifty-seven thousand, four hundred nine".