412073621 has 2 divisors, whose sum is σ = 412073622. Its totient is φ = 412073620.

The previous prime is 412073611. The next prime is 412073633. The reversal of 412073621 is 126370214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383611396 + 28462225 = 19586^2 + 5335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412073621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412073611) 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 as a sum of consecutive naturals, namely, 206036810 + 206036811.

It is an arithmetic number, because the mean of its divisors is an integer number (206036811).

Almost surely, 2^412073621 is an apocalyptic number.

It is an amenable number.

412073621 is a deficient number, since it is larger than the sum of its proper divisors (1).

412073621 is an equidigital number, since it uses as much as digits as its factorization.

412073621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 412073621 is about 20299.5965723460. The cubic root of 412073621 is about 744.1462050561.

The spelling of 412073621 in words is "four hundred twelve million, seventy-three thousand, six hundred twenty-one".