474778791 has 6 divisors (see below), whose sum is σ = 685791600. Its totient is φ = 316519188.

The previous prime is 474778763. The next prime is 474778793. The reversal of 474778791 is 197877474.

474778791 is a `hidden beast` number, since 4 + 7 + 477 + 87 + 91 = 666.

It is not a de Polignac number, because 474778791 - 2⁷ = 474778663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474778793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26376591 + ... + 26376608.

It is an arithmetic number, because the mean of its divisors is an integer number (114298600).

Almost surely, 2^474778791 is an apocalyptic number.

474778791 is a deficient number, since it is larger than the sum of its proper divisors (211012809).

474778791 is a wasteful number, since it uses less digits than its factorization.

474778791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52753205 (or 52753202 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 54.

The square root of 474778791 is about 21789.4192442112. The cubic root of 474778791 is about 780.1242356352.

It can be divided in two parts, 4747 and 78791, that added together give a palindrome (83538).

The spelling of 474778791 in words is "four hundred seventy-four million, seven hundred seventy-eight thousand, seven hundred ninety-one".