94123891 has 12 divisors (see below), whose sum is σ = 100169472. Its totient is φ = 88424784.

The previous prime is 94123877. The next prime is 94123901. The reversal of 94123891 is 19832149.

It is a de Polignac number, because none of the positive numbers 2^k-94123891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 94123891.

It is not an unprimeable number, because it can be changed into a prime (94123871) 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, 44821 + ... + 46873.

It is an arithmetic number, because the mean of its divisors is an integer number (8347456).

Almost surely, 2^94123891 is an apocalyptic number.

94123891 is a deficient number, since it is larger than the sum of its proper divisors (6045581).

94123891 is a wasteful number, since it uses less digits than its factorization.

94123891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2199 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 94123891 is about 9701.7468014786. The cubic root of 94123891 is about 454.8832627298.

The spelling of 94123891 in words is "ninety-four million, one hundred twenty-three thousand, eight hundred ninety-one".