475900913 has 2 divisors, whose sum is σ = 475900914. Its totient is φ = 475900912.

The previous prime is 475900853. The next prime is 475900949. The reversal of 475900913 is 319009574.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314814049 + 161086864 = 17743^2 + 12692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475900913 is a prime.

It is a super-3 number, since 3×475900913³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (475900963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237950456 + 237950457.

It is an arithmetic number, because the mean of its divisors is an integer number (237950457).

Almost surely, 2^475900913 is an apocalyptic number.

It is an amenable number.

475900913 is a deficient number, since it is larger than the sum of its proper divisors (1).

475900913 is an equidigital number, since it uses as much as digits as its factorization.

475900913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 475900913 is about 21815.1532884828. The cubic root of 475900913 is about 780.7383502742.

The spelling of 475900913 in words is "four hundred seventy-five million, nine hundred thousand, nine hundred thirteen".