70217047 has 2 divisors, whose sum is σ = 70217048. Its totient is φ = 70217046.

The previous prime is 70217029. The next prime is 70217053. The reversal of 70217047 is 74071207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70217047 - 2¹¹ = 70214999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70217447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35108523 + 35108524.

It is an arithmetic number, because the mean of its divisors is an integer number (35108524).

Almost surely, 2^70217047 is an apocalyptic number.

70217047 is a deficient number, since it is larger than the sum of its proper divisors (1).

70217047 is an equidigital number, since it uses as much as digits as its factorization.

70217047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 70217047 is about 8379.5612653647. The cubic root of 70217047 is about 412.5540488713.

The spelling of 70217047 in words is "seventy million, two hundred seventeen thousand, forty-seven".