94991988 has 216 divisors, whose sum is σ = 301822752. Its totient is φ = 23030784.

The previous prime is 94991983. The next prime is 94991993. The reversal of 94991988 is 88919949.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (94991983) and next prime (94991993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94991983) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2209095 + ... + 2209137.

Almost surely, 2^94991988 is an apocalyptic number.

94991988 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94991988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150911376).

94991988 is an abundant number, since it is smaller than the sum of its proper divisors (206830764).

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

94991988 is a wasteful number, since it uses less digits than its factorization.

94991988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 85 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 57.

The square root of 94991988 is about 9746.3833292150. The cubic root of 94991988 is about 456.2774358181.

The spelling of 94991988 in words is "ninety-four million, nine hundred ninety-one thousand, nine hundred eighty-eight".