474699581 has 2 divisors, whose sum is σ = 474699582. Its totient is φ = 474699580.

The previous prime is 474699557. The next prime is 474699583. The reversal of 474699581 is 185996474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303979225 + 170720356 = 17435^2 + 13066^2 .

It is a cyclic number.

It is not a de Polignac number, because 474699581 - 2¹⁸ = 474437437 is a prime.

It is a super-2 number, since 2×474699581² = 450679384403151122, which contains 22 as substring.

Together with 474699583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474699583) 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, 237349790 + 237349791.

It is an arithmetic number, because the mean of its divisors is an integer number (237349791).

Almost surely, 2^474699581 is an apocalyptic number.

It is an amenable number.

474699581 is a deficient number, since it is larger than the sum of its proper divisors (1).

474699581 is an equidigital number, since it uses as much as digits as its factorization.

474699581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 474699581 is about 21787.6015430795. The cubic root of 474699581 is about 780.0808490598.

The spelling of 474699581 in words is "four hundred seventy-four million, six hundred ninety-nine thousand, five hundred eighty-one".