48736781 has 2 divisors, whose sum is σ = 48736782. Its totient is φ = 48736780.

The previous prime is 48736717. The next prime is 48736783. The reversal of 48736781 is 18763784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 434281 = 6950^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 48736781 - 2⁶ = 48736717 is a prime.

It is a super-2 number, since 2×48736781² = 4750547644483922, which contains 22 as substring.

Together with 48736783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48736783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24368390 + 24368391.

It is an arithmetic number, because the mean of its divisors is an integer number (24368391).

Almost surely, 2^48736781 is an apocalyptic number.

It is an amenable number.

48736781 is a deficient number, since it is larger than the sum of its proper divisors (1).

48736781 is an equidigital number, since it uses as much as digits as its factorization.

48736781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 44.

The square root of 48736781 is about 6981.1733254518. The cubic root of 48736781 is about 365.2741569449.

The spelling of 48736781 in words is "forty-eight million, seven hundred thirty-six thousand, seven hundred eighty-one".