88447081 has 2 divisors, whose sum is σ = 88447082. Its totient is φ = 88447080.

The previous prime is 88447003. The next prime is 88447097. The reversal of 88447081 is 18074488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83083225 + 5363856 = 9115^2 + 2316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88447081 is a prime.

It is a super-2 number, since 2×88447081² = 15645772274841122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88447181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44223540 + 44223541.

It is an arithmetic number, because the mean of its divisors is an integer number (44223541).

Almost surely, 2^88447081 is an apocalyptic number.

It is an amenable number.

88447081 is a deficient number, since it is larger than the sum of its proper divisors (1).

88447081 is an equidigital number, since it uses as much as digits as its factorization.

88447081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 88447081 is about 9404.6308274169. The cubic root of 88447081 is about 445.5480030722.

The spelling of 88447081 in words is "eighty-eight million, four hundred forty-seven thousand, eighty-one".