89570000 has 150 divisors (see below), whose sum is σ = 239253102. Its totient is φ = 32448000.

The previous prime is 89569993. The next prime is 89570003. The reversal of 89570000 is 7598.

It is a happy number.

It can be written as a sum of positive squares in 15 ways, for example, as 87086224 + 2483776 = 9332^2 + 1576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89570003) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1689974 + ... + 1690026.

Almost surely, 2^89570000 is an apocalyptic number.

89570000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119626551).

89570000 is an abundant number, since it is smaller than the sum of its proper divisors (149683102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89570000 is a wasteful number, since it uses less digits than its factorization.

89570000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 89570000 is about 9464.1428560647. The cubic root of 89570000 is about 447.4256297871.

Adding to 89570000 its reverse (7598), we get a palindrome (89577598).

The spelling of 89570000 in words is "eighty-nine million, five hundred seventy thousand".