94881991 has 12 divisors (see below), whose sum is σ = 100535232. Its totient is φ = 89532864.

The previous prime is 94881989. The next prime is 94882019. The reversal of 94881991 is 19918849.

It is not a de Polignac number, because 94881991 - 2¹ = 94881989 is a prime.

It is a super-2 number, since 2×94881991² = 18005184432248162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94881911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156010 + ... + 156616.

It is an arithmetic number, because the mean of its divisors is an integer number (8377936).

Almost surely, 2^94881991 is an apocalyptic number.

94881991 is a deficient number, since it is larger than the sum of its proper divisors (5653241).

94881991 is a wasteful number, since it uses less digits than its factorization.

94881991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1059 counting only the distinct ones).

The product of its digits is 186624, while the sum is 49.

The square root of 94881991 is about 9740.7387296858. The cubic root of 94881991 is about 456.1012506647.

The spelling of 94881991 in words is "ninety-four million, eight hundred eighty-one thousand, nine hundred ninety-one".