477823889 has 2 divisors, whose sum is σ = 477823890. Its totient is φ = 477823888.

The previous prime is 477823867. The next prime is 477823903. The reversal of 477823889 is 988328774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475588864 + 2235025 = 21808^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 477823889 - 2¹⁶ = 477758353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (477823849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238911944 + 238911945.

It is an arithmetic number, because the mean of its divisors is an integer number (238911945).

Almost surely, 2^477823889 is an apocalyptic number.

It is an amenable number.

477823889 is a deficient number, since it is larger than the sum of its proper divisors (1).

477823889 is an equidigital number, since it uses as much as digits as its factorization.

477823889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 56.

The square root of 477823889 is about 21859.1831732112. The cubic root of 477823889 is about 781.7885152955.

The spelling of 477823889 in words is "four hundred seventy-seven million, eight hundred twenty-three thousand, eight hundred eighty-nine".