94997909 has 2 divisors, whose sum is σ = 94997910. Its totient is φ = 94997908.

The previous prime is 94997831. The next prime is 94997927. The reversal of 94997909 is 90979949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61183684 + 33814225 = 7822^2 + 5815^2 .

It is an emirp because it is prime and its reverse (90979949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94997909 - 2⁸ = 94997653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94997999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47498954 + 47498955.

It is an arithmetic number, because the mean of its divisors is an integer number (47498955).

Almost surely, 2^94997909 is an apocalyptic number.

It is an amenable number.

94997909 is a deficient number, since it is larger than the sum of its proper divisors (1).

94997909 is an equidigital number, since it uses as much as digits as its factorization.

94997909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 94997909 is about 9746.6870781820. The cubic root of 94997909 is about 456.2869157845.

The spelling of 94997909 in words is "ninety-four million, nine hundred ninety-seven thousand, nine hundred nine".