94979813 has 2 divisors, whose sum is σ = 94979814. Its totient is φ = 94979812.

The previous prime is 94979791. The next prime is 94979827. The reversal of 94979813 is 31897949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78021889 + 16957924 = 8833^2 + 4118^2 .

It is an emirp because it is prime and its reverse (31897949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94979813 - 2⁶ = 94979749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94979873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47489906 + 47489907.

It is an arithmetic number, because the mean of its divisors is an integer number (47489907).

Almost surely, 2^94979813 is an apocalyptic number.

It is an amenable number.

94979813 is a deficient number, since it is larger than the sum of its proper divisors (1).

94979813 is an equidigital number, since it uses as much as digits as its factorization.

94979813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 94979813 is about 9745.7587185401. The cubic root of 94979813 is about 456.2579414893.

The spelling of 94979813 in words is "ninety-four million, nine hundred seventy-nine thousand, eight hundred thirteen".