48891021 has 8 divisors (see below), whose sum is σ = 65497824. Its totient is φ = 32439120.

The previous prime is 48890987. The next prime is 48891049. The reversal of 48891021 is 12019884.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48891021 - 2¹³ = 48882829 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48891121) 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 7 ways as a sum of consecutive naturals, for example, 37986 + ... + 39251.

It is an arithmetic number, because the mean of its divisors is an integer number (8187228).

Almost surely, 2^48891021 is an apocalyptic number.

It is an amenable number.

48891021 is a deficient number, since it is larger than the sum of its proper divisors (16606803).

48891021 is a wasteful number, since it uses less digits than its factorization.

48891021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77451.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 48891021 is about 6992.2114527523. The cubic root of 48891021 is about 365.6590856381.

The spelling of 48891021 in words is "forty-eight million, eight hundred ninety-one thousand, twenty-one".