48739681 has 2 divisors, whose sum is σ = 48739682. Its totient is φ = 48739680.

The previous prime is 48739661. The next prime is 48739709. The reversal of 48739681 is 18693784.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48163600 + 576081 = 6940^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 48739681 - 2¹⁹ = 48215393 is a prime.

It is a super-2 number, since 2×48739681² = 4751113007963522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48739601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24369840 + 24369841.

It is an arithmetic number, because the mean of its divisors is an integer number (24369841).

Almost surely, 2^48739681 is an apocalyptic number.

It is an amenable number.

48739681 is a deficient number, since it is larger than the sum of its proper divisors (1).

48739681 is an equidigital number, since it uses as much as digits as its factorization.

48739681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 48739681 is about 6981.3810238376. The cubic root of 48739681 is about 365.2814018089.

The spelling of 48739681 in words is "forty-eight million, seven hundred thirty-nine thousand, six hundred eighty-one".