70988899 has 2 divisors, whose sum is σ = 70988900. Its totient is φ = 70988898.

The previous prime is 70988891. The next prime is 70988947. The reversal of 70988899 is 99888907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70988899 - 2³ = 70988891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70988891) 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, 35494449 + 35494450.

It is an arithmetic number, because the mean of its divisors is an integer number (35494450).

Almost surely, 2^70988899 is an apocalyptic number.

70988899 is a deficient number, since it is larger than the sum of its proper divisors (1).

70988899 is an equidigital number, since it uses as much as digits as its factorization.

70988899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 58.

The square root of 70988899 is about 8425.4910242668. The cubic root of 70988899 is about 414.0601929640.

The spelling of 70988899 in words is "seventy million, nine hundred eighty-eight thousand, eight hundred ninety-nine".