65729730 has 32 divisors (see below), whose sum is σ = 172093248. Its totient is φ = 15934400.

The previous prime is 65729707. The next prime is 65729731. The reversal of 65729730 is 3792756.

It is not an unprimeable number, because it can be changed into a prime (65729731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99261 + ... + 99920.

It is an arithmetic number, because the mean of its divisors is an integer number (5377914).

Almost surely, 2^65729730 is an apocalyptic number.

65729730 is an abundant number, since it is smaller than the sum of its proper divisors (106363518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65729730 is a wasteful number, since it uses less digits than its factorization.

65729730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199202.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 65729730 is about 8107.3873720207. The cubic root of 65729730 is about 403.5716181078.

The spelling of 65729730 in words is "sixty-five million, seven hundred twenty-nine thousand, seven hundred thirty".