474109021 has 2 divisors, whose sum is σ = 474109022. Its totient is φ = 474109020.

The previous prime is 474109007. The next prime is 474109037. The reversal of 474109021 is 120901474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436224996 + 37884025 = 20886^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 474109021 - 2⁵ = 474108989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474109001) 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 as a sum of consecutive naturals, namely, 237054510 + 237054511.

It is an arithmetic number, because the mean of its divisors is an integer number (237054511).

Almost surely, 2^474109021 is an apocalyptic number.

It is an amenable number.

474109021 is a deficient number, since it is larger than the sum of its proper divisors (1).

474109021 is an equidigital number, since it uses as much as digits as its factorization.

474109021 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 28.

The square root of 474109021 is about 21774.0446633142. The cubic root of 474109021 is about 779.7572228210.

The spelling of 474109021 in words is "four hundred seventy-four million, one hundred nine thousand, twenty-one".