94078081 has 2 divisors, whose sum is σ = 94078082. Its totient is φ = 94078080.

The previous prime is 94078007. The next prime is 94078091. The reversal of 94078081 is 18087049.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93412225 + 665856 = 9665^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 94078081 - 2¹¹ = 94076033 is a prime.

It is a super-2 number, since 2×94078081² = 17701370649285122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 94078081.

It is not a weakly prime, because it can be changed into another prime (94078091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47039040 + 47039041.

It is an arithmetic number, because the mean of its divisors is an integer number (47039041).

Almost surely, 2^94078081 is an apocalyptic number.

It is an amenable number.

94078081 is a deficient number, since it is larger than the sum of its proper divisors (1).

94078081 is an equidigital number, since it uses as much as digits as its factorization.

94078081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 94078081 is about 9699.3855990985. The cubic root of 94078081 is about 454.8094536838.

The spelling of 94078081 in words is "ninety-four million, seventy-eight thousand, eighty-one".