65208969 has 40 divisors (see below), whose sum is σ = 117205440. Its totient is φ = 35295264.

The previous prime is 65208959. The next prime is 65208973. The reversal of 65208969 is 96980256.

It is not a de Polignac number, because 65208969 - 2⁴ = 65208953 is a prime.

It is a super-2 number, since 2×65208969² = 8504419276085922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65208919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7747 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (2930136).

Almost surely, 2^65208969 is an apocalyptic number.

It is an amenable number.

65208969 is a deficient number, since it is larger than the sum of its proper divisors (51996471).

65208969 is a wasteful number, since it uses less digits than its factorization.

65208969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091 (or 6082 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 65208969 is about 8075.2070561689. The cubic root of 65208969 is about 402.5029903460.

The spelling of 65208969 in words is "sixty-five million, two hundred eight thousand, nine hundred sixty-nine".