46446721 has 2 divisors, whose sum is σ = 46446722. Its totient is φ = 46446720.

The previous prime is 46446713. The next prime is 46446733. The reversal of 46446721 is 12764464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41990400 + 4456321 = 6480^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 46446721 - 2³ = 46446713 is a prime.

It is not a weakly prime, because it can be changed into another prime (46446121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23223360 + 23223361.

It is an arithmetic number, because the mean of its divisors is an integer number (23223361).

Almost surely, 2^46446721 is an apocalyptic number.

It is an amenable number.

46446721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46446721 is an equidigital number, since it uses as much as digits as its factorization.

46446721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 46446721 is about 6815.1831229982. The cubic root of 46446721 is about 359.4609241401.

The spelling of 46446721 in words is "forty-six million, four hundred forty-six thousand, seven hundred twenty-one".