476299981 has 2 divisors, whose sum is σ = 476299982. Its totient is φ = 476299980.

The previous prime is 476299969. The next prime is 476299997. The reversal of 476299981 is 189992674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437437225 + 38862756 = 20915^2 + 6234^2 .

It is a cyclic number.

It is not a de Polignac number, because 476299981 - 2¹¹ = 476297933 is a prime.

It is a super-2 number, since 2×476299981² = 453723343801200722, 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 (476299381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238149990 + 238149991.

It is an arithmetic number, because the mean of its divisors is an integer number (238149991).

Almost surely, 2^476299981 is an apocalyptic number.

It is an amenable number.

476299981 is a deficient number, since it is larger than the sum of its proper divisors (1).

476299981 is an equidigital number, since it uses as much as digits as its factorization.

476299981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 55.

The square root of 476299981 is about 21824.2979497623. The cubic root of 476299981 is about 780.9565193898.

The spelling of 476299981 in words is "four hundred seventy-six million, two hundred ninety-nine thousand, nine hundred eighty-one".