89894578 has 4 divisors (see below), whose sum is σ = 134841870. Its totient is φ = 44947288.

The previous prime is 89894573. The next prime is 89894579. The reversal of 89894578 is 87549898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 38155329 = 7193^2 + 6177^2 .

It is not an unprimeable number, because it can be changed into a prime (89894573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22473643 + ... + 22473646.

Almost surely, 2^89894578 is an apocalyptic number.

89894578 is a deficient number, since it is larger than the sum of its proper divisors (44947292).

89894578 is a wasteful number, since it uses less digits than its factorization.

89894578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44947291.

The product of its digits is 5806080, while the sum is 58.

The square root of 89894578 is about 9481.2751252139. The cubic root of 89894578 is about 447.9654290128.

The spelling of 89894578 in words is "eighty-nine million, eight hundred ninety-four thousand, five hundred seventy-eight".