94428913 has 2 divisors, whose sum is σ = 94428914. Its totient is φ = 94428912.

The previous prime is 94428889. The next prime is 94428923. The reversal of 94428913 is 31982449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85229824 + 9199089 = 9232^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 94428913 - 2⁹ = 94428401 is a prime.

It is a super-2 number, since 2×94428913² = 17833639220723138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (94428923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47214456 + 47214457.

It is an arithmetic number, because the mean of its divisors is an integer number (47214457).

Almost surely, 2^94428913 is an apocalyptic number.

It is an amenable number.

94428913 is a deficient number, since it is larger than the sum of its proper divisors (1).

94428913 is an equidigital number, since it uses as much as digits as its factorization.

94428913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 94428913 is about 9717.4540389960. The cubic root of 94428913 is about 455.3741044323.

The spelling of 94428913 in words is "ninety-four million, four hundred twenty-eight thousand, nine hundred thirteen".