475869829 has 2 divisors, whose sum is σ = 475869830. Its totient is φ = 475869828.

The previous prime is 475869817. The next prime is 475869907. The reversal of 475869829 is 928968574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446688225 + 29181604 = 21135^2 + 5402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475869829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475869529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237934914 + 237934915.

It is an arithmetic number, because the mean of its divisors is an integer number (237934915).

Almost surely, 2^475869829 is an apocalyptic number.

It is an amenable number.

475869829 is a deficient number, since it is larger than the sum of its proper divisors (1).

475869829 is an equidigital number, since it uses as much as digits as its factorization.

475869829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The square root of 475869829 is about 21814.4408362901. The cubic root of 475869829 is about 780.7213516381.

The spelling of 475869829 in words is "four hundred seventy-five million, eight hundred sixty-nine thousand, eight hundred twenty-nine".