477388906 has 4 divisors (see below), whose sum is σ = 716083362. Its totient is φ = 238694452.

The previous prime is 477388853. The next prime is 477388909. The reversal of 477388906 is 609883774.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 404371881 + 73017025 = 20109^2 + 8545^2 .

It is not an unprimeable number, because it can be changed into a prime (477388909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119347225 + ... + 119347228.

Almost surely, 2^477388906 is an apocalyptic number.

477388906 is a deficient number, since it is larger than the sum of its proper divisors (238694456).

477388906 is a wasteful number, since it uses less digits than its factorization.

477388906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238694455.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 477388906 is about 21849.2312450576. The cubic root of 477388906 is about 781.5512117161.

It can be divided in two parts, 47738 and 8906, that added together give a square (56644 = 238²).

The spelling of 477388906 in words is "four hundred seventy-seven million, three hundred eighty-eight thousand, nine hundred six".