537796381 has 2 divisors, whose sum is σ = 537796382. Its totient is φ = 537796380.

The previous prime is 537796379. The next prime is 537796403. The reversal of 537796381 is 183697735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439112025 + 98684356 = 20955^2 + 9934^2 .

It is a cyclic number.

It is not a de Polignac number, because 537796381 - 2¹ = 537796379 is a prime.

It is a super-2 number, since 2×537796381² = 578449894833394322, which contains 22 as substring.

Together with 537796379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537796321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268898190 + 268898191.

It is an arithmetic number, because the mean of its divisors is an integer number (268898191).

Almost surely, 2^537796381 is an apocalyptic number.

It is an amenable number.

537796381 is a deficient number, since it is larger than the sum of its proper divisors (1).

537796381 is an equidigital number, since it uses as much as digits as its factorization.

537796381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 537796381 is about 23190.4372748769. The cubic root of 537796381 is about 813.2160817979.

The spelling of 537796381 in words is "five hundred thirty-seven million, seven hundred ninety-six thousand, three hundred eighty-one".