70788899 has 2 divisors, whose sum is σ = 70788900. Its totient is φ = 70788898.

The previous prime is 70788869. The next prime is 70788923. The reversal of 70788899 is 99888707.

It is a strong prime.

It is an emirp because it is prime and its reverse (99888707) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70788899 is a prime.

It is a super-2 number, since 2×70788899² = 10022136443264402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70788829) 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, 35394449 + 35394450.

It is an arithmetic number, because the mean of its divisors is an integer number (35394450).

Almost surely, 2^70788899 is an apocalyptic number.

70788899 is a deficient number, since it is larger than the sum of its proper divisors (1).

70788899 is an equidigital number, since it uses as much as digits as its factorization.

70788899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 56.

The square root of 70788899 is about 8413.6139084225. The cubic root of 70788899 is about 413.6709775061.

The spelling of 70788899 in words is "seventy million, seven hundred eighty-eight thousand, eight hundred ninety-nine".