89750019 has 4 divisors (see below), whose sum is σ = 119666696. Its totient is φ = 59833344.

The previous prime is 89750009. The next prime is 89750029. The reversal of 89750019 is 91005798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (89750009) and next prime (89750029).

It is not a de Polignac number, because 89750019 - 2⁸ = 89749763 is a prime.

It is a super-2 number, since 2×89750019² = 16110131821000722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89750009) 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 in 3 ways as a sum of consecutive naturals, for example, 14958334 + ... + 14958339.

It is an arithmetic number, because the mean of its divisors is an integer number (29916674).

Almost surely, 2^89750019 is an apocalyptic number.

89750019 is a deficient number, since it is larger than the sum of its proper divisors (29916677).

89750019 is a wasteful number, since it uses less digits than its factorization.

89750019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29916676.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 89750019 is about 9473.6486635298. The cubic root of 89750019 is about 447.7251765639.

The spelling of 89750019 in words is "eighty-nine million, seven hundred fifty thousand, nineteen".