48643381 has 4 divisors (see below), whose sum is σ = 49259200. Its totient is φ = 48027564.

The previous prime is 48643351. The next prime is 48643391. The reversal of 48643381 is 18334684.

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 48643381 - 2⁵ = 48643349 is a prime.

It is a super-2 number, since 2×48643381² = 4732357030222322, which contains 22 as substring.

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 48643381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48643351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307791 + ... + 307948.

It is an arithmetic number, because the mean of its divisors is an integer number (12314800).

Almost surely, 2^48643381 is an apocalyptic number.

It is an amenable number.

48643381 is a deficient number, since it is larger than the sum of its proper divisors (615819).

48643381 is an equidigital number, since it uses as much as digits as its factorization.

48643381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615818.

The product of its digits is 55296, while the sum is 37.

The square root of 48643381 is about 6974.4806975143. The cubic root of 48643381 is about 365.0406685154.

The spelling of 48643381 in words is "forty-eight million, six hundred forty-three thousand, three hundred eighty-one".