474826621 has 2 divisors, whose sum is σ = 474826622. Its totient is φ = 474826620.

The previous prime is 474826619. The next prime is 474826633. The reversal of 474826621 is 126628474.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368448025 + 106378596 = 19195^2 + 10314^2 .

It is a cyclic number.

It is not a de Polignac number, because 474826621 - 2¹ = 474826619 is a prime.

Together with 474826619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474826021) 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, 237413310 + 237413311.

It is an arithmetic number, because the mean of its divisors is an integer number (237413311).

Almost surely, 2^474826621 is an apocalyptic number.

It is an amenable number.

474826621 is a deficient number, since it is larger than the sum of its proper divisors (1).

474826621 is an equidigital number, since it uses as much as digits as its factorization.

474826621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 474826621 is about 21790.5167676216. The cubic root of 474826621 is about 780.1504317571.

The spelling of 474826621 in words is "four hundred seventy-four million, eight hundred twenty-six thousand, six hundred twenty-one".