46512821 has 2 divisors, whose sum is σ = 46512822. Its totient is φ = 46512820.

The previous prime is 46512787. The next prime is 46512841. The reversal of 46512821 is 12821564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28143025 + 18369796 = 5305^2 + 4286^2 .

It is a cyclic number.

It is not a de Polignac number, because 46512821 - 2⁶ = 46512757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46512841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23256410 + 23256411.

It is an arithmetic number, because the mean of its divisors is an integer number (23256411).

Almost surely, 2^46512821 is an apocalyptic number.

It is an amenable number.

46512821 is a deficient number, since it is larger than the sum of its proper divisors (1).

46512821 is an equidigital number, since it uses as much as digits as its factorization.

46512821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 46512821 is about 6820.0308650328. The cubic root of 46512821 is about 359.6313639046.

The spelling of 46512821 in words is "forty-six million, five hundred twelve thousand, eight hundred twenty-one".