88442681 has 2 divisors, whose sum is σ = 88442682. Its totient is φ = 88442680.

The previous prime is 88442677. The next prime is 88442689. The reversal of 88442681 is 18624488.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 9517225 = 8884^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 88442681 - 2² = 88442677 is a prime.

It is a super-2 number, since 2×88442681² = 15644215644935522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88442689) 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, 44221340 + 44221341.

It is an arithmetic number, because the mean of its divisors is an integer number (44221341).

Almost surely, 2^88442681 is an apocalyptic number.

It is an amenable number.

88442681 is a deficient number, since it is larger than the sum of its proper divisors (1).

88442681 is an equidigital number, since it uses as much as digits as its factorization.

88442681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98304, while the sum is 41.

The square root of 88442681 is about 9404.3968971965. The cubic root of 88442681 is about 445.5406146854.

The spelling of 88442681 in words is "eighty-eight million, four hundred forty-two thousand, six hundred eighty-one".