46816021 has 12 divisors (see below), whose sum is σ = 54572940. Its totient is φ = 40044480.

The previous prime is 46816009. The next prime is 46816027. The reversal of 46816021 is 12061864.

46816021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 4708900 = 6489^2 + 2170^2 .

It is not a de Polignac number, because 46816021 - 2⁷ = 46815893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46816027) 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 11 ways as a sum of consecutive naturals, for example, 39051 + ... + 40231.

It is an arithmetic number, because the mean of its divisors is an integer number (4547745).

Almost surely, 2^46816021 is an apocalyptic number.

It is an amenable number.

46816021 is a deficient number, since it is larger than the sum of its proper divisors (7756919).

46816021 is a wasteful number, since it uses less digits than its factorization.

46816021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 46816021 is about 6842.2233959437. The cubic root of 46816021 is about 360.4111069980.

Adding to 46816021 its reverse (12061864), we get a palindrome (58877885).

The spelling of 46816021 in words is "forty-six million, eight hundred sixteen thousand, twenty-one".