476111989 has 2 divisors, whose sum is σ = 476111990. Its totient is φ = 476111988.

The previous prime is 476111971. The next prime is 476112001. The reversal of 476111989 is 989111674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474499089 + 1612900 = 21783^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 476111989 - 2⁵ = 476111957 is a prime.

It is a super-2 number, since 2×476111989² = 453365252139072242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476111939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238055994 + 238055995.

It is an arithmetic number, because the mean of its divisors is an integer number (238055995).

Almost surely, 2^476111989 is an apocalyptic number.

It is an amenable number.

476111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

476111989 is an equidigital number, since it uses as much as digits as its factorization.

476111989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 46.

The square root of 476111989 is about 21819.9905820328. The cubic root of 476111989 is about 780.8537599920.

The spelling of 476111989 in words is "four hundred seventy-six million, one hundred eleven thousand, nine hundred eighty-nine".