71320766 has 8 divisors (see below), whose sum is σ = 116706744. Its totient is φ = 32418520.

The previous prime is 71320759. The next prime is 71320783. The reversal of 71320766 is 66702317.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620905 + ... + 1620948.

It is an arithmetic number, because the mean of its divisors is an integer number (14588343).

Almost surely, 2^71320766 is an apocalyptic number.

71320766 is a deficient number, since it is larger than the sum of its proper divisors (45385978).

71320766 is a wasteful number, since it uses less digits than its factorization.

71320766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241866.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 71320766 is about 8445.1622838167. The cubic root of 71320766 is about 414.7044220346.

The spelling of 71320766 in words is "seventy-one million, three hundred twenty thousand, seven hundred sixty-six".