46779721 has 2 divisors, whose sum is σ = 46779722. Its totient is φ = 46779720.

The previous prime is 46779679. The next prime is 46779727. The reversal of 46779721 is 12797764.

46779721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 16088121 = 5540^2 + 4011^2 .

It is a cyclic number.

It is not a de Polignac number, because 46779721 - 2¹¹ = 46777673 is a prime.

It is not a weakly prime, because it can be changed into another prime (46779727) 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 as a sum of consecutive naturals, namely, 23389860 + 23389861.

It is an arithmetic number, because the mean of its divisors is an integer number (23389861).

Almost surely, 2^46779721 is an apocalyptic number.

It is an amenable number.

46779721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46779721 is an equidigital number, since it uses as much as digits as its factorization.

46779721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 43.

The square root of 46779721 is about 6839.5702350367. The cubic root of 46779721 is about 360.3179315868.

The spelling of 46779721 in words is "forty-six million, seven hundred seventy-nine thousand, seven hundred twenty-one".