89421778 has 8 divisors (see below), whose sum is σ = 135515772. Its totient is φ = 44249856.

The previous prime is 89421767. The next prime is 89421781. The reversal of 89421778 is 87712498.

It can be written as a sum of positive squares in 2 ways, for example, as 88792929 + 628849 = 9423^2 + 793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230275 + ... + 230662.

Almost surely, 2^89421778 is an apocalyptic number.

89421778 is a deficient number, since it is larger than the sum of its proper divisors (46093994).

89421778 is a wasteful number, since it uses less digits than its factorization.

89421778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461036.

The product of its digits is 225792, while the sum is 46.

The square root of 89421778 is about 9456.3088993539. The cubic root of 89421778 is about 447.1786909424.

The spelling of 89421778 in words is "eighty-nine million, four hundred twenty-one thousand, seven hundred seventy-eight".