48021913 has 4 divisors (see below), whose sum is σ = 48117888. Its totient is φ = 47925940.

The previous prime is 48021881. The next prime is 48021931. The reversal of 48021913 is 31912084.

It is a happy number.

48021913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 48021913 - 2⁵ = 48021881 is a prime.

It is a super-2 number, since 2×48021913² = 4612208256359138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48021943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47233 + ... + 48238.

It is an arithmetic number, because the mean of its divisors is an integer number (12029472).

Almost surely, 2^48021913 is an apocalyptic number.

It is an amenable number.

48021913 is a deficient number, since it is larger than the sum of its proper divisors (95975).

48021913 is an equidigital number, since it uses as much as digits as its factorization.

48021913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95974.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 48021913 is about 6929.7844843833. The cubic root of 48021913 is about 363.4794137133.

Adding to 48021913 its reverse (31912084), we get a palindrome (79933997).

The spelling of 48021913 in words is "forty-eight million, twenty-one thousand, nine hundred thirteen".