479866669 has 2 divisors, whose sum is σ = 479866670. Its totient is φ = 479866668.

The previous prime is 479866661. The next prime is 479866693. The reversal of 479866669 is 966668974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467121769 + 12744900 = 21613^2 + 3570^2 .

It is a cyclic number.

It is not a de Polignac number, because 479866669 - 2³ = 479866661 is a prime.

It is a super-2 number, since 2×479866669² = 460544040034311122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479866661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239933334 + 239933335.

It is an arithmetic number, because the mean of its divisors is an integer number (239933335).

Almost surely, 2^479866669 is an apocalyptic number.

It is an amenable number.

479866669 is a deficient number, since it is larger than the sum of its proper divisors (1).

479866669 is an equidigital number, since it uses as much as digits as its factorization.

479866669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 61.

The square root of 479866669 is about 21905.8592390255. The cubic root of 479866669 is about 782.9010252400.

The spelling of 479866669 in words is "four hundred seventy-nine million, eight hundred sixty-six thousand, six hundred sixty-nine".