70919 has 2 divisors, whose sum is σ = 70920. Its totient is φ = 70918.

The previous prime is 70913. The next prime is 70921. The reversal of 70919 is 91907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70919 - 2⁸ = 70663 is a prime.

It is a super-2 number, since 2×70919² = 10059009122, which contains 22 as substring.

Together with 70921, 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 (70913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35459 + 35460.

It is an arithmetic number, because the mean of its divisors is an integer number (35460).

2⁷⁰⁹¹⁹ is an apocalyptic number.

70919 is a deficient number, since it is larger than the sum of its proper divisors (1).

70919 is an equidigital number, since it uses as much as digits as its factorization.

70919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 70919 is about 266.3062147228. The cubic root of 70919 is about 41.3924247305.

It can be divided in two parts, 70 and 919, that added together give a palindrome (989).

The spelling of 70919 in words is "seventy thousand, nine hundred nineteen".