70942571 has 4 divisors (see below), whose sum is σ = 81077232. Its totient is φ = 60807912.

The previous prime is 70942559. The next prime is 70942577. The reversal of 70942571 is 17524907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17524907 = 911 ⋅19237.

It is a cyclic number.

It is not a de Polignac number, because 70942571 - 2²² = 66748267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70942577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5067320 + ... + 5067333.

It is an arithmetic number, because the mean of its divisors is an integer number (20269308).

Almost surely, 2^70942571 is an apocalyptic number.

70942571 is a deficient number, since it is larger than the sum of its proper divisors (10134661).

70942571 is a wasteful number, since it uses less digits than its factorization.

70942571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134660.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 70942571 is about 8422.7412996007. The cubic root of 70942571 is about 413.9701002156.

The spelling of 70942571 in words is "seventy million, nine hundred forty-two thousand, five hundred seventy-one".