89903919 has 16 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 51309120.

The previous prime is 89903917. The next prime is 89903959. The reversal of 89903919 is 91930998.

It is not a de Polignac number, because 89903919 - 2¹ = 89903917 is a prime.

It is a super-2 number, since 2×89903919² = 16165429303117122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89903917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18187 + ... + 22595.

It is an arithmetic number, because the mean of its divisors is an integer number (8573040).

Almost surely, 2^89903919 is an apocalyptic number.

89903919 is a deficient number, since it is larger than the sum of its proper divisors (47264721).

89903919 is a wasteful number, since it uses less digits than its factorization.

89903919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 89903919 is about 9481.7677149359. The cubic root of 89903919 is about 447.9809445950.

The spelling of 89903919 in words is "eighty-nine million, nine hundred three thousand, nine hundred nineteen".