70603439 has 2 divisors, whose sum is σ = 70603440. Its totient is φ = 70603438.

The previous prime is 70603391. The next prime is 70603441. The reversal of 70603439 is 93430607.

It is a strong prime.

It is an emirp because it is prime and its reverse (93430607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70603439 - 2¹⁶ = 70537903 is a prime.

Together with 70603441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70603459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35301719 + 35301720.

It is an arithmetic number, because the mean of its divisors is an integer number (35301720).

Almost surely, 2^70603439 is an apocalyptic number.

70603439 is a deficient number, since it is larger than the sum of its proper divisors (1).

70603439 is an equidigital number, since it uses as much as digits as its factorization.

70603439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 70603439 is about 8402.5852569313. The cubic root of 70603439 is about 413.3094023750.

The spelling of 70603439 in words is "seventy million, six hundred three thousand, four hundred thirty-nine".