474728891 has 8 divisors (see below), whose sum is σ = 584281824. Its totient is φ = 375609600.

The previous prime is 474728887. The next prime is 474728909. The reversal of 474728891 is 198827474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 474728891 - 2² = 474728887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (474728801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608310 + ... + 2608491.

It is an arithmetic number, because the mean of its divisors is an integer number (73035228).

Almost surely, 2^474728891 is an apocalyptic number.

474728891 is a deficient number, since it is larger than the sum of its proper divisors (109552933).

474728891 is a wasteful number, since it uses less digits than its factorization.

474728891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216821.

The product of its digits is 903168, while the sum is 50.

The square root of 474728891 is about 21788.2741629529. The cubic root of 474728891 is about 780.0969039150.

The spelling of 474728891 in words is "four hundred seventy-four million, seven hundred twenty-eight thousand, eight hundred ninety-one".