89799738 has 64 divisors (see below), whose sum is σ = 221168640. Its totient is φ = 23732352.

The previous prime is 89799737. The next prime is 89799739. The reversal of 89799738 is 83799798.

89799738 = 467² + 468² + ... + 718².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89799737) and next prime (89799739).

It is a super-3 number, since 3×89799738³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (89799737) 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, 33006 + ... + 35622.

It is an arithmetic number, because the mean of its divisors is an integer number (3455760).

Almost surely, 2^89799738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89799738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110584320).

89799738 is an abundant number, since it is smaller than the sum of its proper divisors (131368902).

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

89799738 is a wasteful number, since it uses less digits than its factorization.

89799738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691.

The product of its digits is 6858432, while the sum is 60.

The square root of 89799738 is about 9476.2723683947. The cubic root of 89799738 is about 447.8078370432.

Adding to 89799738 its sum of digits (60), we get a palindrome (89799798).

The spelling of 89799738 in words is "eighty-nine million, seven hundred ninety-nine thousand, seven hundred thirty-eight".