71064775 has 6 divisors (see below), whose sum is σ = 88120352. Its totient is φ = 56851800.

The previous prime is 71064751. The next prime is 71064781. The reversal of 71064775 is 57746017.

It is not a de Polignac number, because 71064775 - 2⁷ = 71064647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1421271 + ... + 1421320.

Almost surely, 2^71064775 is an apocalyptic number.

71064775 is a deficient number, since it is larger than the sum of its proper divisors (17055577).

71064775 is a wasteful number, since it uses less digits than its factorization.

71064775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842601 (or 2842596 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 71064775 is about 8429.9925859991. The cubic root of 71064775 is about 414.2076622393.

It can be divided in two parts, 7106 and 4775, that added together give a square (11881 = 109²).

The spelling of 71064775 in words is "seventy-one million, sixty-four thousand, seven hundred seventy-five".