96661998 has 48 divisors (see below), whose sum is σ = 219413376. Its totient is φ = 31891320.

The previous prime is 96661997. The next prime is 96662009. The reversal of 96661998 is 89916669.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96661993) 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, 49093 + ... + 51023.

It is an arithmetic number, because the mean of its divisors is an integer number (4571112).

Almost surely, 2^96661998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 96661998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109706688).

96661998 is an abundant number, since it is smaller than the sum of its proper divisors (122751378).

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

96661998 is a wasteful number, since it uses less digits than its factorization.

96661998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2039 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 96661998 is about 9831.6833756992. The cubic root of 96661998 is about 458.9357849420.

It can be divided in two parts, 9666 and 1998, that added together give a square (11664 = 108²).

The spelling of 96661998 in words is "ninety-six million, six hundred sixty-one thousand, nine hundred ninety-eight".