94731891 has 16 divisors (see below), whose sum is σ = 133194240. Its totient is φ = 59724000.

The previous prime is 94731887. The next prime is 94731907. The reversal of 94731891 is 19813749.

It is a happy number.

It is not a de Polignac number, because 94731891 - 2² = 94731887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94731391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41701 + ... + 43913.

It is an arithmetic number, because the mean of its divisors is an integer number (8324640).

Almost surely, 2^94731891 is an apocalyptic number.

94731891 is a deficient number, since it is larger than the sum of its proper divisors (38462349).

94731891 is a wasteful number, since it uses less digits than its factorization.

94731891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986.

The product of its digits is 54432, while the sum is 42.

The square root of 94731891 is about 9733.0309256675. The cubic root of 94731891 is about 455.8606116364.

The spelling of 94731891 in words is "ninety-four million, seven hundred thirty-one thousand, eight hundred ninety-one".