476215381 has 2 divisors, whose sum is σ = 476215382. Its totient is φ = 476215380.

The previous prime is 476215357. The next prime is 476215393. The reversal of 476215381 is 183512674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244140625 + 232074756 = 15625^2 + 15234^2 .

It is a cyclic number.

It is not a de Polignac number, because 476215381 - 2¹⁷ = 476084309 is a prime.

It is a super-2 number, since 2×476215381² = 453562178201950322, which contains 22 as substring.

It is equal to p_25166593 and since 476215381 and 25166593 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 476215381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476215301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238107690 + 238107691.

It is an arithmetic number, because the mean of its divisors is an integer number (238107691).

Almost surely, 2^476215381 is an apocalyptic number.

It is an amenable number.

476215381 is a deficient number, since it is larger than the sum of its proper divisors (1).

476215381 is an equidigital number, since it uses as much as digits as its factorization.

476215381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 476215381 is about 21822.3596570123. The cubic root of 476215381 is about 780.9102790397.

The spelling of 476215381 in words is "four hundred seventy-six million, two hundred fifteen thousand, three hundred eighty-one".