72710866 has 8 divisors (see below), whose sum is σ = 113808384. Its totient is φ = 34774740.

The previous prime is 72710861. The next prime is 72710873. The reversal of 72710866 is 66801727.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (72710861) 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, 790290 + ... + 790381.

It is an arithmetic number, because the mean of its divisors is an integer number (14226048).

Almost surely, 2^72710866 is an apocalyptic number.

72710866 is a deficient number, since it is larger than the sum of its proper divisors (41097518).

72710866 is a wasteful number, since it uses less digits than its factorization.

72710866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580696.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 72710866 is about 8527.0666703152. The cubic root of 72710866 is about 417.3814137247.

The spelling of 72710866 in words is "seventy-two million, seven hundred ten thousand, eight hundred sixty-six".