89478620 has 96 divisors (see below), whose sum is σ = 237081600. Its totient is φ = 27555840.

The previous prime is 89478611. The next prime is 89478629. The reversal of 89478620 is 2687498.

It is an interprime number because it is at equal distance from previous prime (89478611) and next prime (89478629).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89478629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149081 + ... + 149679.

It is an arithmetic number, because the mean of its divisors is an integer number (2469600).

Almost surely, 2^89478620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89478620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118540800).

89478620 is an abundant number, since it is smaller than the sum of its proper divisors (147602980).

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

89478620 is a wasteful number, since it uses less digits than its factorization.

89478620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 89478620 is about 9459.3139286103. The cubic root of 89478620 is about 447.2734223295.

The spelling of 89478620 in words is "eighty-nine million, four hundred seventy-eight thousand, six hundred twenty".