70065271 has 8 divisors (see below), whose sum is σ = 71356544. Its totient is φ = 68778720.

The previous prime is 70065253. The next prime is 70065277. The reversal of 70065271 is 17256007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-70065271 is a prime.

It is the 8371-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70065277) by changing a digit.

It is a nontrivial repunit in base 8370.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43930 + ... + 45496.

It is an arithmetic number, because the mean of its divisors is an integer number (8919568).

Almost surely, 2^70065271 is an apocalyptic number.

70065271 is a deficient number, since it is larger than the sum of its proper divisors (1291273).

70065271 is a wasteful number, since it uses less digits than its factorization.

70065271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 70065271 is about 8370.5000448002. The cubic root of 70065271 is about 412.2565856222.

The spelling of 70065271 in words is "seventy million, sixty-five thousand, two hundred seventy-one".