71056670 has 16 divisors (see below), whose sum is σ = 132312960. Its totient is φ = 27442464.

The previous prime is 71056669. The next prime is 71056673. The reversal of 71056670 is 7665017.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71056673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122222 + ... + 122801.

It is an arithmetic number, because the mean of its divisors is an integer number (8269560).

Almost surely, 2^71056670 is an apocalyptic number.

71056670 is a deficient number, since it is larger than the sum of its proper divisors (61256290).

71056670 is a wasteful number, since it uses less digits than its factorization.

71056670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245059.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 71056670 is about 8429.5118482626. The cubic root of 71056670 is about 414.1919147248.

The spelling of 71056670 in words is "seventy-one million, fifty-six thousand, six hundred seventy".