474798221 has 8 divisors (see below), whose sum is σ = 485518104. Its totient is φ = 464143680.

The previous prime is 474798199. The next prime is 474798227. The reversal of 474798221 is 122897474.

It can be written as a sum of positive squares in 4 ways, for example, as 4515625 + 470282596 = 2125^2 + 21686^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474798221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474798227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490 + ... + 30851.

It is an arithmetic number, because the mean of its divisors is an integer number (60689763).

Almost surely, 2^474798221 is an apocalyptic number.

It is an amenable number.

474798221 is a deficient number, since it is larger than the sum of its proper divisors (10719883).

474798221 is a wasteful number, since it uses less digits than its factorization.

474798221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32671.

The product of its digits is 225792, while the sum is 44.

The square root of 474798221 is about 21789.8650982515. The cubic root of 474798221 is about 780.1348775084.

The spelling of 474798221 in words is "four hundred seventy-four million, seven hundred ninety-eight thousand, two hundred twenty-one".