65678697 has 12 divisors (see below), whose sum is σ = 108422080. Its totient is φ = 37530648.

The previous prime is 65678681. The next prime is 65678699. The reversal of 65678697 is 79687656.

It is a happy number.

It is not a de Polignac number, because 65678697 - 2⁴ = 65678681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65678699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521197 + ... + 521322.

Almost surely, 2^65678697 is an apocalyptic number.

It is an amenable number.

65678697 is a deficient number, since it is larger than the sum of its proper divisors (42743383).

65678697 is a wasteful number, since it uses less digits than its factorization.

65678697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042532 (or 1042529 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 65678697 is about 8104.2394461171. The cubic root of 65678697 is about 403.4671458350.

The spelling of 65678697 in words is "sixty-five million, six hundred seventy-eight thousand, six hundred ninety-seven".