94239839 has 2 divisors, whose sum is σ = 94239840. Its totient is φ = 94239838.

The previous prime is 94239799. The next prime is 94239863. The reversal of 94239839 is 93893249.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94239839 - 2⁸ = 94239583 is a prime.

It is a super-2 number, since 2×94239839² = 17762294509491842, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 94239793 and 94239802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94239869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47119919 + 47119920.

It is an arithmetic number, because the mean of its divisors is an integer number (47119920).

Almost surely, 2^94239839 is an apocalyptic number.

94239839 is a deficient number, since it is larger than the sum of its proper divisors (1).

94239839 is an equidigital number, since it uses as much as digits as its factorization.

94239839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 94239839 is about 9707.7205872439. The cubic root of 94239839 is about 455.0699711253.

The spelling of 94239839 in words is "ninety-four million, two hundred thirty-nine thousand, eight hundred thirty-nine".