46720409 has 2 divisors, whose sum is σ = 46720410. Its totient is φ = 46720408.

The previous prime is 46720393. The next prime is 46720423. The reversal of 46720409 is 90402764.

46720409 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., 35664784 + 11055625 = 5972^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 46720409 - 2⁴ = 46720393 is a prime.

It is not a weakly prime, because it can be changed into another prime (46720439) 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, 23360204 + 23360205.

It is an arithmetic number, because the mean of its divisors is an integer number (23360205).

Almost surely, 2^46720409 is an apocalyptic number.

It is an amenable number.

46720409 is a deficient number, since it is larger than the sum of its proper divisors (1).

46720409 is an equidigital number, since it uses as much as digits as its factorization.

46720409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 46720409 is about 6835.2329148318. The cubic root of 46720409 is about 360.1655848345.

The spelling of 46720409 in words is "forty-six million, seven hundred twenty thousand, four hundred nine".