46644921 has 24 divisors (see below), whose sum is σ = 69896736. Its totient is φ = 29952960.

The previous prime is 46644919. The next prime is 46644947. The reversal of 46644921 is 12944664.

46644921 is a `hidden beast` number, since 4 + 6 + 644 + 9 + 2 + 1 = 666.

It is not a de Polignac number, because 46644921 - 2¹ = 46644919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46644971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29866 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (2912364).

Almost surely, 2^46644921 is an apocalyptic number.

46644921 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

46644921 is a deficient number, since it is larger than the sum of its proper divisors (23251815).

46644921 is a wasteful number, since it uses less digits than its factorization.

46644921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1650 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 46644921 is about 6829.7087053549. The cubic root of 46644921 is about 359.9715023738.

The spelling of 46644921 in words is "forty-six million, six hundred forty-four thousand, nine hundred twenty-one".