70209193 has 2 divisors, whose sum is σ = 70209194. Its totient is φ = 70209192.

The previous prime is 70209173. The next prime is 70209221. The reversal of 70209193 is 39190207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 11042329 = 7692^2 + 3323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70209193 is a prime.

It is a super-2 number, since 2×70209193² = 9858661563422498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70209103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35104596 + 35104597.

It is an arithmetic number, because the mean of its divisors is an integer number (35104597).

Almost surely, 2^70209193 is an apocalyptic number.

It is an amenable number.

70209193 is a deficient number, since it is larger than the sum of its proper divisors (1).

70209193 is an equidigital number, since it uses as much as digits as its factorization.

70209193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 70209193 is about 8379.0926119718. The cubic root of 70209193 is about 412.5386664703.

The spelling of 70209193 in words is "seventy million, two hundred nine thousand, one hundred ninety-three".