89641398 has 96 divisors (see below), whose sum is σ = 232888320. Its totient is φ = 22492800.

The previous prime is 89641397. The next prime is 89641399. The reversal of 89641398 is 89314698.

It is an interprime number because it is at equal distance from previous prime (89641397) and next prime (89641399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89641393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157258 + ... + 157826.

It is an arithmetic number, because the mean of its divisors is an integer number (2425920).

Almost surely, 2^89641398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89641398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116444160).

89641398 is an abundant number, since it is smaller than the sum of its proper divisors (143246922).

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

89641398 is a wasteful number, since it uses less digits than its factorization.

89641398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 623 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 89641398 is about 9467.9141314230. The cubic root of 89641398 is about 447.5444821216.

The spelling of 89641398 in words is "eighty-nine million, six hundred forty-one thousand, three hundred ninety-eight".