70071427 has 2 divisors, whose sum is σ = 70071428. Its totient is φ = 70071426.

The previous prime is 70071403. The next prime is 70071437. The reversal of 70071427 is 72417007.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70071427 - 2⁷ = 70071299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70071395 and 70071404.

It is not a weakly prime, because it can be changed into another prime (70071437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35035713 + 35035714.

It is an arithmetic number, because the mean of its divisors is an integer number (35035714).

Almost surely, 2^70071427 is an apocalyptic number.

70071427 is a deficient number, since it is larger than the sum of its proper divisors (1).

70071427 is an equidigital number, since it uses as much as digits as its factorization.

70071427 is an odious number, because the sum of its binary digits is odd.

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

The square root of 70071427 is about 8370.8677566905. The cubic root of 70071427 is about 412.2686590179.

It can be divided in two parts, 700 and 71427, that added together give a palindrome (72127).

The spelling of 70071427 in words is "seventy million, seventy-one thousand, four hundred twenty-seven".