88043009 has 2 divisors, whose sum is σ = 88043010. Its totient is φ = 88043008.

The previous prime is 88043003. The next prime is 88043023. The reversal of 88043009 is 90034088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57760000 + 30283009 = 7600^2 + 5503^2 .

It is a cyclic number.

It is not a de Polignac number, because 88043009 - 2⁴ = 88042993 is a prime.

It is not a weakly prime, because it can be changed into another prime (88043003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44021504 + 44021505.

It is an arithmetic number, because the mean of its divisors is an integer number (44021505).

Almost surely, 2^88043009 is an apocalyptic number.

It is an amenable number.

88043009 is a deficient number, since it is larger than the sum of its proper divisors (1).

88043009 is an equidigital number, since it uses as much as digits as its factorization.

88043009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 88043009 is about 9383.1236270231. The cubic root of 88043009 is about 444.8684693117.

The spelling of 88043009 in words is "eighty-eight million, forty-three thousand, nine".