46641781 has 2 divisors, whose sum is σ = 46641782. Its totient is φ = 46641780.

The previous prime is 46641757. The next prime is 46641797. The reversal of 46641781 is 18714664.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 18190225 = 5334^2 + 4265^2 .

It is a cyclic number.

It is not a de Polignac number, because 46641781 - 2⁷ = 46641653 is a prime.

It is a super-2 number, since 2×46641781² = 4350911469703922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46641781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46641281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320890 + 23320891.

It is an arithmetic number, because the mean of its divisors is an integer number (23320891).

Almost surely, 2^46641781 is an apocalyptic number.

It is an amenable number.

46641781 is a deficient number, since it is larger than the sum of its proper divisors (1).

46641781 is an equidigital number, since it uses as much as digits as its factorization.

46641781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 46641781 is about 6829.4788234535. The cubic root of 46641781 is about 359.9634247821.

The spelling of 46641781 in words is "forty-six million, six hundred forty-one thousand, seven hundred eighty-one".