70206497 has 2 divisors, whose sum is σ = 70206498. Its totient is φ = 70206496.

The previous prime is 70206491. The next prime is 70206517. The reversal of 70206497 is 79460207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 4661281 = 8096^2 + 2159^2 .

It is an emirp because it is prime and its reverse (79460207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70206497 - 2¹⁸ = 69944353 is a prime.

It is a super-2 number, since 2×70206497² = 9857904442022018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70206491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35103248 + 35103249.

It is an arithmetic number, because the mean of its divisors is an integer number (35103249).

Almost surely, 2^70206497 is an apocalyptic number.

It is an amenable number.

70206497 is a deficient number, since it is larger than the sum of its proper divisors (1).

70206497 is an equidigital number, since it uses as much as digits as its factorization.

70206497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 70206497 is about 8378.9317338191. The cubic root of 70206497 is about 412.5333859724.

The spelling of 70206497 in words is "seventy million, two hundred six thousand, four hundred ninety-seven".