70749171 has 12 divisors (see below), whose sum is σ = 102317280. Its totient is φ = 47108880.

The previous prime is 70749167. The next prime is 70749197. The reversal of 70749171 is 17194707.

It is not a de Polignac number, because 70749171 - 2² = 70749167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70749101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3885 + ... + 12513.

It is an arithmetic number, because the mean of its divisors is an integer number (8526440).

Almost surely, 2^70749171 is an apocalyptic number.

70749171 is a deficient number, since it is larger than the sum of its proper divisors (31568109).

70749171 is a wasteful number, since it uses less digits than its factorization.

70749171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9546 (or 9543 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 70749171 is about 8411.2526415511. The cubic root of 70749171 is about 413.5935765002.

The spelling of 70749171 in words is "seventy million, seven hundred forty-nine thousand, one hundred seventy-one".