881478361 has 2 divisors, whose sum is σ = 881478362. Its totient is φ = 881478360.

The previous prime is 881478347. The next prime is 881478379. The reversal of 881478361 is 163874188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676988361 + 204490000 = 26019^2 + 14300^2 .

It is a cyclic number.

It is not a de Polignac number, because 881478361 - 2⁷ = 881478233 is a prime.

It is a super-2 number, since 2×881478361² = 1554008201822492642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (881478341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440739180 + 440739181.

It is an arithmetic number, because the mean of its divisors is an integer number (440739181).

Almost surely, 2^881478361 is an apocalyptic number.

It is an amenable number.

881478361 is a deficient number, since it is larger than the sum of its proper divisors (1).

881478361 is an equidigital number, since it uses as much as digits as its factorization.

881478361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 46.

The square root of 881478361 is about 29689.7012615486. The cubic root of 881478361 is about 958.8202960582.

The spelling of 881478361 in words is "eight hundred eighty-one million, four hundred seventy-eight thousand, three hundred sixty-one".