70078823 has 2 divisors, whose sum is σ = 70078824. Its totient is φ = 70078822.

The previous prime is 70078793. The next prime is 70078829. The reversal of 70078823 is 32887007.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70078823 - 2¹⁸ = 69816679 is a prime.

It is a super-2 number, since 2×70078823² = 9822082866130658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70078829) 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, 35039411 + 35039412.

It is an arithmetic number, because the mean of its divisors is an integer number (35039412).

Almost surely, 2^70078823 is an apocalyptic number.

70078823 is a deficient number, since it is larger than the sum of its proper divisors (1).

70078823 is an equidigital number, since it uses as much as digits as its factorization.

70078823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 70078823 is about 8371.3095152431. The cubic root of 70078823 is about 412.2831634165.

The spelling of 70078823 in words is "seventy million, seventy-eight thousand, eight hundred twenty-three".