94840019 has 2 divisors, whose sum is σ = 94840020. Its totient is φ = 94840018.

The previous prime is 94840013. The next prime is 94840027. The reversal of 94840019 is 91004849.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 94840019 - 2⁸ = 94839763 is a prime.

It is a super-2 number, since 2×94840019² = 17989258407840722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_5480963 and since 94840019 and 5480963 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (94840013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47420009 + 47420010.

It is an arithmetic number, because the mean of its divisors is an integer number (47420010).

Almost surely, 2^94840019 is an apocalyptic number.

94840019 is a deficient number, since it is larger than the sum of its proper divisors (1).

94840019 is an equidigital number, since it uses as much as digits as its factorization.

94840019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 94840019 is about 9738.5840346531. The cubic root of 94840019 is about 456.0339870918.

The spelling of 94840019 in words is "ninety-four million, eight hundred forty thousand, nineteen".