70051697 has 2 divisors, whose sum is σ = 70051698. Its totient is φ = 70051696.

The previous prime is 70051643. The next prime is 70051717. The reversal of 70051697 is 79615007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 4910656 = 8071^2 + 2216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70051697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70050697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35025848 + 35025849.

It is an arithmetic number, because the mean of its divisors is an integer number (35025849).

Almost surely, 2^70051697 is an apocalyptic number.

It is an amenable number.

70051697 is a deficient number, since it is larger than the sum of its proper divisors (1).

70051697 is an equidigital number, since it uses as much as digits as its factorization.

70051697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 70051697 is about 8369.6891818036. The cubic root of 70051697 is about 412.2299612465.

The spelling of 70051697 in words is "seventy million, fifty-one thousand, six hundred ninety-seven".