70797511 has 2 divisors, whose sum is σ = 70797512. Its totient is φ = 70797510.

The previous prime is 70797449. The next prime is 70797533. The reversal of 70797511 is 11579707.

It is a strong prime.

It is an emirp because it is prime and its reverse (11579707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70797511 - 2⁷ = 70797383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70797541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35398755 + 35398756.

It is an arithmetic number, because the mean of its divisors is an integer number (35398756).

Almost surely, 2^70797511 is an apocalyptic number.

70797511 is a deficient number, since it is larger than the sum of its proper divisors (1).

70797511 is an equidigital number, since it uses as much as digits as its factorization.

70797511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15435, while the sum is 37.

The square root of 70797511 is about 8414.1256824462. The cubic root of 70797511 is about 413.6877522173.

The spelling of 70797511 in words is "seventy million, seven hundred ninety-seven thousand, five hundred eleven".