71670193 has 16 divisors (see below), whose sum is σ = 84044800. Its totient is φ = 61090848.

The previous prime is 71670167. The next prime is 71670197. The reversal of 71670193 is 39107617.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-71670193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71670197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76021 + ... + 76957.

It is an arithmetic number, because the mean of its divisors is an integer number (5252800).

Almost surely, 2^71670193 is an apocalyptic number.

It is an amenable number.

71670193 is a deficient number, since it is larger than the sum of its proper divisors (12374607).

71670193 is an equidigital number, since it uses as much as digits as its factorization.

71670193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 71670193 is about 8465.8250040974. The cubic root of 71670193 is about 415.3805827939.

The spelling of 71670193 in words is "seventy-one million, six hundred seventy thousand, one hundred ninety-three".