89478961 has 16 divisors (see below), whose sum is σ = 110658240. Its totient is φ = 71133120.

The previous prime is 89478959. The next prime is 89479043. The reversal of 89478961 is 16987498.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89478961 - 2¹ = 89478959 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 89478899 and 89478908.

It is not an unprimeable number, because it can be changed into a prime (89478931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13750 + ... + 19183.

It is an arithmetic number, because the mean of its divisors is an integer number (6916140).

Almost surely, 2^89478961 is an apocalyptic number.

It is an amenable number.

89478961 is a deficient number, since it is larger than the sum of its proper divisors (21179279).

89478961 is a wasteful number, since it uses less digits than its factorization.

89478961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32976.

The product of its digits is 870912, while the sum is 52.

The square root of 89478961 is about 9459.3319531561. The cubic root of 89478961 is about 447.2739905101.

The spelling of 89478961 in words is "eighty-nine million, four hundred seventy-eight thousand, nine hundred sixty-one".