48986981 has 2 divisors, whose sum is σ = 48986982. Its totient is φ = 48986980.

The previous prime is 48986957. The next prime is 48987023. The reversal of 48986981 is 18968984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44102881 + 4884100 = 6641^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 48986981 - 2¹⁰ = 48985957 is a prime.

It is a super-2 number, since 2×48986981² = 4799448614988722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48986081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24493490 + 24493491.

It is an arithmetic number, because the mean of its divisors is an integer number (24493491).

Almost surely, 2^48986981 is an apocalyptic number.

It is an amenable number.

48986981 is a deficient number, since it is larger than the sum of its proper divisors (1).

48986981 is an equidigital number, since it uses as much as digits as its factorization.

48986981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 53.

The square root of 48986981 is about 6999.0700096513. The cubic root of 48986981 is about 365.8981596275.

The spelling of 48986981 in words is "forty-eight million, nine hundred eighty-six thousand, nine hundred eighty-one".