71056767 has 4 divisors (see below), whose sum is σ = 94742360. Its totient is φ = 47371176.

The previous prime is 71056747. The next prime is 71056819. The reversal of 71056767 is 76765017.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71056767 - 2⁶ = 71056703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71056747) 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, 11842792 + ... + 11842797.

It is an arithmetic number, because the mean of its divisors is an integer number (23685590).

Almost surely, 2^71056767 is an apocalyptic number.

71056767 is a deficient number, since it is larger than the sum of its proper divisors (23685593).

71056767 is a wasteful number, since it uses less digits than its factorization.

71056767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23685592.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 71056767 is about 8429.5176018560. The cubic root of 71056767 is about 414.1921031969.

The spelling of 71056767 in words is "seventy-one million, fifty-six thousand, seven hundred sixty-seven".