65900069 has 4 divisors (see below), whose sum is σ = 66980460. Its totient is φ = 64819680.

The previous prime is 65900059. The next prime is 65900077. The reversal of 65900069 is 96000956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28751044 + 37149025 = 5362^2 + 6095^2 .

It is a cyclic number.

It is not a de Polignac number, because 65900069 - 2⁴ = 65900053 is a prime.

It is a super-2 number, since 2×65900069² = 8685638188409522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65900059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540104 + ... + 540225.

It is an arithmetic number, because the mean of its divisors is an integer number (16745115).

Almost surely, 2^65900069 is an apocalyptic number.

It is an amenable number.

65900069 is a deficient number, since it is larger than the sum of its proper divisors (1080391).

65900069 is a wasteful number, since it uses less digits than its factorization.

65900069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080390.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 65900069 is about 8117.8857469171. The cubic root of 65900069 is about 403.9199368352.

The spelling of 65900069 in words is "sixty-five million, nine hundred thousand, sixty-nine".