65720683 has 8 divisors (see below), whose sum is σ = 78375168. Its totient is φ = 53882664.

The previous prime is 65720609. The next prime is 65720693. The reversal of 65720683 is 38602756.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65720683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65720693) 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, 203941 + ... + 204262.

It is an arithmetic number, because the mean of its divisors is an integer number (9796896).

Almost surely, 2^65720683 is an apocalyptic number.

65720683 is a deficient number, since it is larger than the sum of its proper divisors (12654485).

65720683 is a wasteful number, since it uses less digits than its factorization.

65720683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408233.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 65720683 is about 8106.8294048907. The cubic root of 65720683 is about 403.5531014743.

The spelling of 65720683 in words is "sixty-five million, seven hundred twenty thousand, six hundred eighty-three".