46891613 has 2 divisors, whose sum is σ = 46891614. Its totient is φ = 46891612.

The previous prime is 46891609. The next prime is 46891631. The reversal of 46891613 is 31619864.

46891613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (46891631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36638809 + 10252804 = 6053^2 + 3202^2 .

It is a cyclic number.

It is not a de Polignac number, because 46891613 - 2² = 46891609 is a prime.

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 (46891633) 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, 23445806 + 23445807.

It is an arithmetic number, because the mean of its divisors is an integer number (23445807).

Almost surely, 2^46891613 is an apocalyptic number.

It is an amenable number.

46891613 is a deficient number, since it is larger than the sum of its proper divisors (1).

46891613 is an equidigital number, since it uses as much as digits as its factorization.

46891613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 46891613 is about 6847.7451033169. The cubic root of 46891613 is about 360.6049832650.

The spelling of 46891613 in words is "forty-six million, eight hundred ninety-one thousand, six hundred thirteen".