89897550 has 48 divisors (see below), whose sum is σ = 234687360. Its totient is φ = 22710240.

The previous prime is 89897539. The next prime is 89897557. The reversal of 89897550 is 5579898.

It is a junction number, because it is equal to n+sod(n) for n = 89897493 and 89897502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89897557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12922 + ... + 18621.

It is an arithmetic number, because the mean of its divisors is an integer number (4889320).

Almost surely, 2^89897550 is an apocalyptic number.

89897550 is an abundant number, since it is smaller than the sum of its proper divisors (144789810).

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

89897550 is a wasteful number, since it uses less digits than its factorization.

89897550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31577 (or 31572 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 89897550 is about 9481.4318538921. The cubic root of 89897550 is about 447.9703656790.

The spelling of 89897550 in words is "eighty-nine million, eight hundred ninety-seven thousand, five hundred fifty".