70797691 has 2 divisors, whose sum is σ = 70797692. Its totient is φ = 70797690.

The previous prime is 70797653. The next prime is 70797697. The reversal of 70797691 is 19679707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70797691 - 2⁷ = 70797563 is a prime.

It is not a weakly prime, because it can be changed into another prime (70797697) 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, 35398845 + 35398846.

It is an arithmetic number, because the mean of its divisors is an integer number (35398846).

Almost surely, 2^70797691 is an apocalyptic number.

70797691 is a deficient number, since it is larger than the sum of its proper divisors (1).

70797691 is an equidigital number, since it uses as much as digits as its factorization.

70797691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 166698, while the sum is 46.

The square root of 70797691 is about 8414.1363787379. The cubic root of 70797691 is about 413.6881028121.

The spelling of 70797691 in words is "seventy million, seven hundred ninety-seven thousand, six hundred ninety-one".