474990853 has 2 divisors, whose sum is σ = 474990854. Its totient is φ = 474990852.

The previous prime is 474990847. The next prime is 474990881. The reversal of 474990853 is 358099474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455480964 + 19509889 = 21342^2 + 4417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474990853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 474990797 and 474990806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474960853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237495426 + 237495427.

It is an arithmetic number, because the mean of its divisors is an integer number (237495427).

Almost surely, 2^474990853 is an apocalyptic number.

It is an amenable number.

474990853 is a deficient number, since it is larger than the sum of its proper divisors (1).

474990853 is an equidigital number, since it uses as much as digits as its factorization.

474990853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 474990853 is about 21794.2848701213. The cubic root of 474990853 is about 780.2403669678.

The spelling of 474990853 in words is "four hundred seventy-four million, nine hundred ninety thousand, eight hundred fifty-three".