727600381 has 2 divisors, whose sum is σ = 727600382. Its totient is φ = 727600380.

The previous prime is 727600339. The next prime is 727600387. The reversal of 727600381 is 183006727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413105625 + 314494756 = 20325^2 + 17734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-727600381 is a prime.

It is a super-2 number, since 2×727600381² = 1058804628862690322, which contains 22 as substring.

It is equal to p_37606930 and since 727600381 and 37606930 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727600387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363800190 + 363800191.

It is an arithmetic number, because the mean of its divisors is an integer number (363800191).

Almost surely, 2^727600381 is an apocalyptic number.

It is an amenable number.

727600381 is a deficient number, since it is larger than the sum of its proper divisors (1).

727600381 is an equidigital number, since it uses as much as digits as its factorization.

727600381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 727600381 is about 26974.0686771573. The cubic root of 727600381 is about 899.4236561013.

The spelling of 727600381 in words is "seven hundred twenty-seven million, six hundred thousand, three hundred eighty-one".