89956709 has 2 divisors, whose sum is σ = 89956710. Its totient is φ = 89956708.

The previous prime is 89956693. The next prime is 89956717. The reversal of 89956709 is 90765998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 7963684 = 9055^2 + 2822^2 .

It is a cyclic number.

It is not a de Polignac number, because 89956709 - 2⁴ = 89956693 is a prime.

It is a super-2 number, since 2×89956709² = 16184418988221362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89956729) 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, 44978354 + 44978355.

It is an arithmetic number, because the mean of its divisors is an integer number (44978355).

Almost surely, 2^89956709 is an apocalyptic number.

It is an amenable number.

89956709 is a deficient number, since it is larger than the sum of its proper divisors (1).

89956709 is an equidigital number, since it uses as much as digits as its factorization.

89956709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 89956709 is about 9484.5510700296. The cubic root of 89956709 is about 448.0686096160.

The spelling of 89956709 in words is "eighty-nine million, nine hundred fifty-six thousand, seven hundred nine".