46422721 has 2 divisors, whose sum is σ = 46422722. Its totient is φ = 46422720.

The previous prime is 46422713. The next prime is 46422737. The reversal of 46422721 is 12722464.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38887696 + 7535025 = 6236^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 46422721 - 2³ = 46422713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46422721.

It is not a weakly prime, because it can be changed into another prime (46422421) 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, 23211360 + 23211361.

It is an arithmetic number, because the mean of its divisors is an integer number (23211361).

Almost surely, 2^46422721 is an apocalyptic number.

It is an amenable number.

46422721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46422721 is an equidigital number, since it uses as much as digits as its factorization.

46422721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 46422721 is about 6813.4221210784. The cubic root of 46422721 is about 359.3989997936.

The spelling of 46422721 in words is "forty-six million, four hundred twenty-two thousand, seven hundred twenty-one".