48963981 has 12 divisors (see below), whose sum is σ = 71760416. Its totient is φ = 29674920.

The previous prime is 48963979. The next prime is 48963983. The reversal of 48963981 is 18936984.

48963981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48963979) and next prime (48963983).

It is not a de Polignac number, because 48963981 - 2¹ = 48963979 is a prime.

It is a super-2 number, since 2×48963981² = 4794942870736722, 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 48963981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48963983) 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 11 ways as a sum of consecutive naturals, for example, 67081 + ... + 67806.

Almost surely, 2^48963981 is an apocalyptic number.

It is an amenable number.

48963981 is a deficient number, since it is larger than the sum of its proper divisors (22796435).

48963981 is a wasteful number, since it uses less digits than its factorization.

48963981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134912 (or 134901 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 48963981 is about 6997.4267413100. The cubic root of 48963981 is about 365.8408860763.

The spelling of 48963981 in words is "forty-eight million, nine hundred sixty-three thousand, nine hundred eighty-one".