46644581 has 2 divisors, whose sum is σ = 46644582. Its totient is φ = 46644580.

The previous prime is 46644571. The next prime is 46644607. The reversal of 46644581 is 18544664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 17850625 = 5366^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 46644581 - 2¹⁰ = 46643557 is a prime.

It is a super-2 number, since 2×46644581² = 4351433873331122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46644571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23322290 + 23322291.

It is an arithmetic number, because the mean of its divisors is an integer number (23322291).

Almost surely, 2^46644581 is an apocalyptic number.

It is an amenable number.

46644581 is a deficient number, since it is larger than the sum of its proper divisors (1).

46644581 is an equidigital number, since it uses as much as digits as its factorization.

46644581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The square root of 46644581 is about 6829.6838140576. The cubic root of 46644581 is about 359.9706277476.

The spelling of 46644581 in words is "forty-six million, six hundred forty-four thousand, five hundred eighty-one".