88999409 has 2 divisors, whose sum is σ = 88999410. Its totient is φ = 88999408.

The previous prime is 88999373. The next prime is 88999429. The reversal of 88999409 is 90499988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88887184 + 112225 = 9428^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 88999409 - 2²⁴ = 72222193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88999429) 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, 44499704 + 44499705.

It is an arithmetic number, because the mean of its divisors is an integer number (44499705).

Almost surely, 2^88999409 is an apocalyptic number.

It is an amenable number.

88999409 is a deficient number, since it is larger than the sum of its proper divisors (1).

88999409 is an equidigital number, since it uses as much as digits as its factorization.

88999409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 88999409 is about 9433.9498090672. The cubic root of 88999409 is about 446.4735212925.

The spelling of 88999409 in words is "eighty-eight million, nine hundred ninety-nine thousand, four hundred nine".