46621521 has 16 divisors (see below), whose sum is σ = 69424000. Its totient is φ = 30921264.

The previous prime is 46621453. The next prime is 46621537. The reversal of 46621521 is 12512664.

46621521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 46621521 - 2¹¹ = 46619473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (46621541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035 + ... + 9711.

It is an arithmetic number, because the mean of its divisors is an integer number (4339000).

Almost surely, 2^46621521 is an apocalyptic number.

It is an amenable number.

46621521 is a deficient number, since it is larger than the sum of its proper divisors (22802479).

46621521 is a wasteful number, since it uses less digits than its factorization.

46621521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885 (or 8879 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 46621521 is about 6827.9953866417. The cubic root of 46621521 is about 359.9112975904.

The spelling of 46621521 in words is "forty-six million, six hundred twenty-one thousand, five hundred twenty-one".