70247071 has 2 divisors, whose sum is σ = 70247072. Its totient is φ = 70247070.

The previous prime is 70247059. The next prime is 70247081. The reversal of 70247071 is 17074207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70247071 - 2⁵ = 70247039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70247041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35123535 + 35123536.

It is an arithmetic number, because the mean of its divisors is an integer number (35123536).

Almost surely, 2^70247071 is an apocalyptic number.

70247071 is a deficient number, since it is larger than the sum of its proper divisors (1).

70247071 is an equidigital number, since it uses as much as digits as its factorization.

70247071 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 70247071 is about 8381.3525758078. The cubic root of 70247071 is about 412.6128416112.

The spelling of 70247071 in words is "seventy million, two hundred forty-seven thousand, seventy-one".