46782721 has 2 divisors, whose sum is σ = 46782722. Its totient is φ = 46782720.

The previous prime is 46782661. The next prime is 46782727. The reversal of 46782721 is 12728764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 746496 = 6785^2 + 864^2 .

It is a cyclic number.

It is not a de Polignac number, because 46782721 - 2⁹ = 46782209 is a prime.

It is not a weakly prime, because it can be changed into another prime (46782727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23391360 + 23391361.

It is an arithmetic number, because the mean of its divisors is an integer number (23391361).

Almost surely, 2^46782721 is an apocalyptic number.

It is an amenable number.

46782721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46782721 is an equidigital number, since it uses as much as digits as its factorization.

46782721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 46782721 is about 6839.7895435459. The cubic root of 46782721 is about 360.3256338608.

The spelling of 46782721 in words is "forty-six million, seven hundred eighty-two thousand, seven hundred twenty-one".