48686381 has 2 divisors, whose sum is σ = 48686382. Its totient is φ = 48686380.

The previous prime is 48686371. The next prime is 48686431. The reversal of 48686381 is 18368684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28526281 + 20160100 = 5341^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 48686381 - 2¹⁸ = 48424237 is a prime.

It is a super-2 number, since 2×48686381² = 4740727389754322, 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 (48686371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24343190 + 24343191.

It is an arithmetic number, because the mean of its divisors is an integer number (24343191).

Almost surely, 2^48686381 is an apocalyptic number.

It is an amenable number.

48686381 is a deficient number, since it is larger than the sum of its proper divisors (1).

48686381 is an equidigital number, since it uses as much as digits as its factorization.

48686381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The square root of 48686381 is about 6977.5626833444. The cubic root of 48686381 is about 365.1482002800.

The spelling of 48686381 in words is "forty-eight million, six hundred eighty-six thousand, three hundred eighty-one".