65469999 has 32 divisors (see below), whose sum is σ = 103472640. Its totient is φ = 36047232.

The previous prime is 65469967. The next prime is 65470021. The reversal of 65469999 is 99996456.

It is not a de Polignac number, because 65469999 - 2⁵ = 65469967 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

65469999 is a modest number, since divided by 9999 gives 6546 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65465999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65169 + ... + 66165.

It is an arithmetic number, because the mean of its divisors is an integer number (3233520).

Almost surely, 2^65469999 is an apocalyptic number.

65469999 is a deficient number, since it is larger than the sum of its proper divisors (38002641).

65469999 is a wasteful number, since it uses less digits than its factorization.

65469999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 4723920, while the sum is 57.

The square root of 65469999 is about 8091.3533478646. The cubic root of 65469999 is about 403.0393453736.

The spelling of 65469999 in words is "sixty-five million, four hundred sixty-nine thousand, nine hundred ninety-nine".