46921709 has 2 divisors, whose sum is σ = 46921710. Its totient is φ = 46921708.

The previous prime is 46921673. The next prime is 46921723. The reversal of 46921709 is 90712964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46199209 + 722500 = 6797^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 46921709 - 2²⁰ = 45873133 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (46921759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23460854 + 23460855.

It is an arithmetic number, because the mean of its divisors is an integer number (23460855).

Almost surely, 2^46921709 is an apocalyptic number.

It is an amenable number.

46921709 is a deficient number, since it is larger than the sum of its proper divisors (1).

46921709 is an equidigital number, since it uses as much as digits as its factorization.

46921709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 46921709 is about 6849.9422625304. The cubic root of 46921709 is about 360.6821146599.

The spelling of 46921709 in words is "forty-six million, nine hundred twenty-one thousand, seven hundred nine".