70083257 has 2 divisors, whose sum is σ = 70083258. Its totient is φ = 70083256.

The previous prime is 70083253. The next prime is 70083269. The reversal of 70083257 is 75238007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58920976 + 11162281 = 7676^2 + 3341^2 .

It is a cyclic number.

It is not a de Polignac number, because 70083257 - 2² = 70083253 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70083253) 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, 35041628 + 35041629.

It is an arithmetic number, because the mean of its divisors is an integer number (35041629).

Almost surely, 2^70083257 is an apocalyptic number.

It is an amenable number.

70083257 is a deficient number, since it is larger than the sum of its proper divisors (1).

70083257 is an equidigital number, since it uses as much as digits as its factorization.

70083257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 70083257 is about 8371.5743441721. The cubic root of 70083257 is about 412.2918585064.

The spelling of 70083257 in words is "seventy million, eighty-three thousand, two hundred fifty-seven".