71706070 has 8 divisors (see below), whose sum is σ = 129070944. Its totient is φ = 28682424.

The previous prime is 71706053. The next prime is 71706073. The reversal of 71706070 is 7060717.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71706073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3585294 + ... + 3585313.

It is an arithmetic number, because the mean of its divisors is an integer number (16133868).

Almost surely, 2^71706070 is an apocalyptic number.

71706070 is a deficient number, since it is larger than the sum of its proper divisors (57364874).

71706070 is a wasteful number, since it uses less digits than its factorization.

71706070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170614.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 71706070 is about 8467.9436701008. The cubic root of 71706070 is about 415.4498822825.

Adding to 71706070 its reverse (7060717), we get a palindrome (78766787).

The spelling of 71706070 in words is "seventy-one million, seven hundred six thousand, seventy".