94387439 has 2 divisors, whose sum is σ = 94387440. Its totient is φ = 94387438.

The previous prime is 94387393. The next prime is 94387441. The reversal of 94387439 is 93478349.

It is a strong prime.

It is an emirp because it is prime and its reverse (93478349) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94387439 is a prime.

It is a Sophie Germain prime.

Together with 94387441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 94387393 and 94387402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94387639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47193719 + 47193720.

It is an arithmetic number, because the mean of its divisors is an integer number (47193720).

Almost surely, 2^94387439 is an apocalyptic number.

94387439 is a deficient number, since it is larger than the sum of its proper divisors (1).

94387439 is an equidigital number, since it uses as much as digits as its factorization.

94387439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 94387439 is about 9715.3198094556. The cubic root of 94387439 is about 455.3074265802.

The spelling of 94387439 in words is "ninety-four million, three hundred eighty-seven thousand, four hundred thirty-nine".