89908493 has 2 divisors, whose sum is σ = 89908494. Its totient is φ = 89908492.

The previous prime is 89908487. The next prime is 89908499. The reversal of 89908493 is 39480998.

It is a balanced prime because it is at equal distance from previous prime (89908487) and next prime (89908499).

It can be written as a sum of positive squares in only one way, i.e., 89908324 + 169 = 9482^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 89908493 - 2⁴ = 89908477 is a prime.

It is a super-2 number, since 2×89908493² = 16167074227062098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89908499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44954246 + 44954247.

It is an arithmetic number, because the mean of its divisors is an integer number (44954247).

Almost surely, 2^89908493 is an apocalyptic number.

It is an amenable number.

89908493 is a deficient number, since it is larger than the sum of its proper divisors (1).

89908493 is an equidigital number, since it uses as much as digits as its factorization.

89908493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 89908493 is about 9482.0089116178. The cubic root of 89908493 is about 447.9885417058.

The spelling of 89908493 in words is "eighty-nine million, nine hundred eight thousand, four hundred ninety-three".