70944571 has 2 divisors, whose sum is σ = 70944572. Its totient is φ = 70944570.

The previous prime is 70944569. The next prime is 70944583. The reversal of 70944571 is 17544907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70944571 - 2¹ = 70944569 is a prime.

Together with 70944569, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70944571.

It is not a weakly prime, because it can be changed into another prime (70944541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35472285 + 35472286.

It is an arithmetic number, because the mean of its divisors is an integer number (35472286).

Almost surely, 2^70944571 is an apocalyptic number.

70944571 is a deficient number, since it is larger than the sum of its proper divisors (1).

70944571 is an equidigital number, since it uses as much as digits as its factorization.

70944571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 70944571 is about 8422.8600249559. The cubic root of 70944571 is about 413.9739903689.

The spelling of 70944571 in words is "seventy million, nine hundred forty-four thousand, five hundred seventy-one".