474844781 has 2 divisors, whose sum is σ = 474844782. Its totient is φ = 474844780.

The previous prime is 474844771. The next prime is 474844787. The reversal of 474844781 is 187448474.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330003556 + 144841225 = 18166^2 + 12035^2 .

It is a cyclic number.

It is not a de Polignac number, because 474844781 - 2¹⁸ = 474582637 is a prime.

It is a super-2 number, since 2×474844781² = 450955132085875922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474844787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237422390 + 237422391.

It is an arithmetic number, because the mean of its divisors is an integer number (237422391).

Almost surely, 2^474844781 is an apocalyptic number.

It is an amenable number.

474844781 is a deficient number, since it is larger than the sum of its proper divisors (1).

474844781 is an equidigital number, since it uses as much as digits as its factorization.

474844781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 802816, while the sum is 47.

The square root of 474844781 is about 21790.9334586658. The cubic root of 474844781 is about 780.1603773882.

The spelling of 474844781 in words is "four hundred seventy-four million, eight hundred forty-four thousand, seven hundred eighty-one".