94330991 has 4 divisors (see below), whose sum is σ = 99295800. Its totient is φ = 89366184.

The previous prime is 94330987. The next prime is 94331009. The reversal of 94330991 is 19903349.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19903349 = 23 ⋅865363.

It is a cyclic number.

It is not a de Polignac number, because 94330991 - 2² = 94330987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94330891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2482376 + ... + 2482413.

It is an arithmetic number, because the mean of its divisors is an integer number (24823950).

Almost surely, 2^94330991 is an apocalyptic number.

94330991 is a deficient number, since it is larger than the sum of its proper divisors (4964809).

94330991 is a wasteful number, since it uses less digits than its factorization.

94330991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964808.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 94330991 is about 9712.4142724659. The cubic root of 94330991 is about 455.2166436007.

The spelling of 94330991 in words is "ninety-four million, three hundred thirty thousand, nine hundred ninety-one".