70866253 has 2 divisors, whose sum is σ = 70866254. Its totient is φ = 70866252.

The previous prime is 70866223. The next prime is 70866259. The reversal of 70866253 is 35266807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35784324 + 35081929 = 5982^2 + 5923^2 .

It is an emirp because it is prime and its reverse (35266807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70866253 - 2⁵ = 70866221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70866259) 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, 35433126 + 35433127.

It is an arithmetic number, because the mean of its divisors is an integer number (35433127).

Almost surely, 2^70866253 is an apocalyptic number.

It is an amenable number.

70866253 is a deficient number, since it is larger than the sum of its proper divisors (1).

70866253 is an equidigital number, since it uses as much as digits as its factorization.

70866253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 70866253 is about 8418.2096077491. The cubic root of 70866253 is about 413.8216011996.

The spelling of 70866253 in words is "seventy million, eight hundred sixty-six thousand, two hundred fifty-three".