48981643 has 4 divisors (see below), whose sum is σ = 50561728. Its totient is φ = 47401560.

The previous prime is 48981631. The next prime is 48981671. The reversal of 48981643 is 34618984.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48981643 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 48981643.

It is not an unprimeable number, because it can be changed into a prime (48981043) 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, 789996 + ... + 790057.

It is an arithmetic number, because the mean of its divisors is an integer number (12640432).

Almost surely, 2^48981643 is an apocalyptic number.

48981643 is a deficient number, since it is larger than the sum of its proper divisors (1580085).

48981643 is a wasteful number, since it uses less digits than its factorization.

48981643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580084.

The product of its digits is 165888, while the sum is 43.

The square root of 48981643 is about 6998.6886628854. The cubic root of 48981643 is about 365.8848687811.

The spelling of 48981643 in words is "forty-eight million, nine hundred eighty-one thousand, six hundred forty-three".