70208587 has 2 divisors, whose sum is σ = 70208588. Its totient is φ = 70208586.

The previous prime is 70208569. The next prime is 70208597. The reversal of 70208587 is 78580207.

It is a strong prime.

It is an emirp because it is prime and its reverse (78580207) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70208587 is a prime.

It is not a weakly prime, because it can be changed into another prime (70208557) 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, 35104293 + 35104294.

It is an arithmetic number, because the mean of its divisors is an integer number (35104294).

Almost surely, 2^70208587 is an apocalyptic number.

70208587 is a deficient number, since it is larger than the sum of its proper divisors (1).

70208587 is an equidigital number, since it uses as much as digits as its factorization.

70208587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 70208587 is about 8379.0564504603. The cubic root of 70208587 is about 412.5374795452.

The spelling of 70208587 in words is "seventy million, two hundred eight thousand, five hundred eighty-seven".