70040197 has 2 divisors, whose sum is σ = 70040198. Its totient is φ = 70040196.

The previous prime is 70040123. The next prime is 70040209. The reversal of 70040197 is 79104007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 36 = 8369^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 70040197 - 2¹¹ = 70038149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70040107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35020098 + 35020099.

It is an arithmetic number, because the mean of its divisors is an integer number (35020099).

Almost surely, 2^70040197 is an apocalyptic number.

It is an amenable number.

70040197 is a deficient number, since it is larger than the sum of its proper divisors (1).

70040197 is an equidigital number, since it uses as much as digits as its factorization.

70040197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 70040197 is about 8369.0021507943. The cubic root of 70040197 is about 412.2074021737.

The spelling of 70040197 in words is "seventy million, forty thousand, one hundred ninety-seven".