70853819 has 2 divisors, whose sum is σ = 70853820. Its totient is φ = 70853818.

The previous prime is 70853791. The next prime is 70853833. The reversal of 70853819 is 91835807.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70853819 is a prime.

It is a super-2 number, since 2×70853819² = 10040527333769522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70853219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35426909 + 35426910.

It is an arithmetic number, because the mean of its divisors is an integer number (35426910).

Almost surely, 2^70853819 is an apocalyptic number.

70853819 is a deficient number, since it is larger than the sum of its proper divisors (1).

70853819 is an equidigital number, since it uses as much as digits as its factorization.

70853819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 70853819 is about 8417.4710572713. The cubic root of 70853819 is about 413.7973971131.

The spelling of 70853819 in words is "seventy million, eight hundred fifty-three thousand, eight hundred nineteen".