70080091 has 2 divisors, whose sum is σ = 70080092. Its totient is φ = 70080090.

The previous prime is 70080089. The next prime is 70080097. The reversal of 70080091 is 19008007.

It is a weak prime.

It is an emirp because it is prime and its reverse (19008007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70080091 - 2¹ = 70080089 is a prime.

It is a super-2 number, since 2×70080091² = 9822438309136562, which contains 22 as substring.

Together with 70080089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70080097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35040045 + 35040046.

It is an arithmetic number, because the mean of its divisors is an integer number (35040046).

Almost surely, 2^70080091 is an apocalyptic number.

70080091 is a deficient number, since it is larger than the sum of its proper divisors (1).

70080091 is an equidigital number, since it uses as much as digits as its factorization.

70080091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 70080091 is about 8371.3852497660. The cubic root of 70080091 is about 412.2856500065.

Adding to 70080091 its reverse (19008007), we get a palindrome (89088098).

The spelling of 70080091 in words is "seventy million, eighty thousand, ninety-one".