48428399 has 4 divisors (see below), whose sum is σ = 48473880. Its totient is φ = 48382920.

The previous prime is 48428353. The next prime is 48428431. The reversal of 48428399 is 99382484.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48428399 - 2¹⁶ = 48362863 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 (48428599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21104 + ... + 23285.

It is an arithmetic number, because the mean of its divisors is an integer number (12118470).

Almost surely, 2^48428399 is an apocalyptic number.

48428399 is a deficient number, since it is larger than the sum of its proper divisors (45481).

48428399 is a wasteful number, since it uses less digits than its factorization.

48428399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45480.

The product of its digits is 497664, while the sum is 47.

The square root of 48428399 is about 6959.0515876806. The cubic root of 48428399 is about 364.5021021341.

The spelling of 48428399 in words is "forty-eight million, four hundred twenty-eight thousand, three hundred ninety-nine".