476621653 has 2 divisors, whose sum is σ = 476621654. Its totient is φ = 476621652.

The previous prime is 476621581. The next prime is 476621657. The reversal of 476621653 is 356126674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303909489 + 172712164 = 17433^2 + 13142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476621653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476621657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238310826 + 238310827.

It is an arithmetic number, because the mean of its divisors is an integer number (238310827).

Almost surely, 2^476621653 is an apocalyptic number.

It is an amenable number.

476621653 is a deficient number, since it is larger than the sum of its proper divisors (1).

476621653 is an equidigital number, since it uses as much as digits as its factorization.

476621653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 476621653 is about 21831.6662900476. Note that the first 3 decimals coincide. The cubic root of 476621653 is about 781.1322876900.

The spelling of 476621653 in words is "four hundred seventy-six million, six hundred twenty-one thousand, six hundred fifty-three".