89459999 has 4 divisors (see below), whose sum is σ = 94168440. Its totient is φ = 84751560.

The previous prime is 89459987. The next prime is 89460011. The reversal of 89459999 is 99995498.

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 (89459987) and next prime (89460011).

It is a cyclic number.

It is not a de Polignac number, because 89459999 - 2⁸ = 89459743 is a prime.

It is a Duffinian number.

89459999 is a modest number, since divided by 9999 gives 8945 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89459959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354192 + ... + 2354229.

It is an arithmetic number, because the mean of its divisors is an integer number (23542110).

Almost surely, 2^89459999 is an apocalyptic number.

89459999 is a deficient number, since it is larger than the sum of its proper divisors (4708441).

89459999 is a wasteful number, since it uses less digits than its factorization.

89459999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708440.

The product of its digits is 9447840, while the sum is 62.

The square root of 89459999 is about 9458.3296093972. The cubic root of 89459999 is about 447.2423934788.

The spelling of 89459999 in words is "eighty-nine million, four hundred fifty-nine thousand, nine hundred ninety-nine".