65648907 has 8 divisors (see below), whose sum is σ = 97257680. Its totient is φ = 43765920.

The previous prime is 65648903. The next prime is 65648909. The reversal of 65648907 is 70984656.

65648907 is a `hidden beast` number, since 6 + 564 + 89 + 0 + 7 = 666.

It is not a de Polignac number, because 65648907 - 2² = 65648903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65648903) 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, 1215694 + ... + 1215747.

It is an arithmetic number, because the mean of its divisors is an integer number (12157210).

Almost surely, 2^65648907 is an apocalyptic number.

65648907 is a deficient number, since it is larger than the sum of its proper divisors (31608773).

65648907 is a wasteful number, since it uses less digits than its factorization.

65648907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431450 (or 2431444 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 65648907 is about 8102.4013107226. The cubic root of 65648907 is about 403.4061361800.

The spelling of 65648907 in words is "sixty-five million, six hundred forty-eight thousand, nine hundred seven".