89478778 has 8 divisors (see below), whose sum is σ = 135521568. Its totient is φ = 44304924.

The previous prime is 89478737. The next prime is 89478811. The reversal of 89478778 is 87787498.

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

It is a plaindrome in base 16.

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, 216976 + ... + 217387.

It is an arithmetic number, because the mean of its divisors is an integer number (16940196).

Almost surely, 2^89478778 is an apocalyptic number.

89478778 is a deficient number, since it is larger than the sum of its proper divisors (46042790).

89478778 is a wasteful number, since it uses less digits than its factorization.

89478778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434468.

The product of its digits is 6322176, while the sum is 58.

The square root of 89478778 is about 9459.3222801636. The cubic root of 89478778 is about 447.2736855922.

The spelling of 89478778 in words is "eighty-nine million, four hundred seventy-eight thousand, seven hundred seventy-eight".