46021821 has 8 divisors (see below), whose sum is σ = 63021024. Its totient is φ = 29851920.

The previous prime is 46021793. The next prime is 46021823. The reversal of 46021821 is 12812064.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 46021821 - 2¹¹ = 46019773 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 46021791 and 46021800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46021823) 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 7 ways as a sum of consecutive naturals, for example, 207195 + ... + 207416.

It is an arithmetic number, because the mean of its divisors is an integer number (7877628).

Almost surely, 2^46021821 is an apocalyptic number.

It is an amenable number.

46021821 is a deficient number, since it is larger than the sum of its proper divisors (16999203).

46021821 is a wasteful number, since it uses less digits than its factorization.

46021821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414651.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 46021821 is about 6783.9384578576. The cubic root of 46021821 is about 358.3614344406.

Adding to 46021821 its reverse (12812064), we get a palindrome (58833885).

The spelling of 46021821 in words is "forty-six million, twenty-one thousand, eight hundred twenty-one".