70821119 has 2 divisors, whose sum is σ = 70821120. Its totient is φ = 70821118.

The previous prime is 70821097. The next prime is 70821131. The reversal of 70821119 is 91112807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70821119 - 2⁸ = 70820863 is a prime.

It is a super-2 number, since 2×70821119² = 10031261792824322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70821091 and 70821100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70821139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35410559 + 35410560.

It is an arithmetic number, because the mean of its divisors is an integer number (35410560).

Almost surely, 2^70821119 is an apocalyptic number.

70821119 is a deficient number, since it is larger than the sum of its proper divisors (1).

70821119 is an equidigital number, since it uses as much as digits as its factorization.

70821119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 70821119 is about 8415.5284444888. The cubic root of 70821119 is about 413.7337296109.

The spelling of 70821119 in words is "seventy million, eight hundred twenty-one thousand, one hundred nineteen".