66910713 has 8 divisors (see below), whose sum is σ = 89544576. Its totient is φ = 44442000.

The previous prime is 66910693. The next prime is 66910769. The reversal of 66910713 is 31701966.

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

It is not a de Polignac number, because 66910713 - 2¹⁷ = 66779641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66910213) 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, 40338 + ... + 41963.

It is an arithmetic number, because the mean of its divisors is an integer number (11193072).

Almost surely, 2^66910713 is an apocalyptic number.

It is an amenable number.

66910713 is a deficient number, since it is larger than the sum of its proper divisors (22633863).

66910713 is a wasteful number, since it uses less digits than its factorization.

66910713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82575.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 66910713 is about 8179.8968819906. The cubic root of 66910713 is about 405.9743102158.

The spelling of 66910713 in words is "sixty-six million, nine hundred ten thousand, seven hundred thirteen".