48357921 has 4 divisors (see below), whose sum is σ = 64477232. Its totient is φ = 32238612.

The previous prime is 48357919. The next prime is 48357931. The reversal of 48357921 is 12975384.

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 48357921 - 2¹ = 48357919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48357921.

It is not an unprimeable number, because it can be changed into a prime (48357931) 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, 8059651 + ... + 8059656.

It is an arithmetic number, because the mean of its divisors is an integer number (16119308).

Almost surely, 2^48357921 is an apocalyptic number.

It is an amenable number.

48357921 is a deficient number, since it is larger than the sum of its proper divisors (16119311).

48357921 is a wasteful number, since it uses less digits than its factorization.

48357921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119310.

The product of its digits is 60480, while the sum is 39.

The square root of 48357921 is about 6953.9859792784. The cubic root of 48357921 is about 364.3251959405.

The spelling of 48357921 in words is "forty-eight million, three hundred fifty-seven thousand, nine hundred twenty-one".