94731921 has 6 divisors (see below), whose sum is σ = 136835010. Its totient is φ = 63154608.

The previous prime is 94731913. The next prime is 94731937. The reversal of 94731921 is 12913749.

It can be written as a sum of positive squares in only one way, i.e., 85821696 + 8910225 = 9264^2 + 2985^2 .

It is not a de Polignac number, because 94731921 - 2³ = 94731913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94731941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5262876 + ... + 5262893.

It is an arithmetic number, because the mean of its divisors is an integer number (22805835).

Almost surely, 2^94731921 is an apocalyptic number.

It is an amenable number.

94731921 is a deficient number, since it is larger than the sum of its proper divisors (42103089).

94731921 is a wasteful number, since it uses less digits than its factorization.

94731921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525775 (or 10525772 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 94731921 is about 9733.0324668112. The cubic root of 94731921 is about 455.8606597575.

The spelling of 94731921 in words is "ninety-four million, seven hundred thirty-one thousand, nine hundred twenty-one".