65709469 has 12 divisors (see below), whose sum is σ = 75812512. Its totient is φ = 55790280.

The previous prime is 65709443. The next prime is 65709517. The reversal of 65709469 is 96490756.

It is a de Polignac number, because none of the positive numbers 2^k-65709469 is a prime.

It is a super-2 number, since 2×65709469² = 8635468632523922, 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 (65709169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119854 + ... + 120400.

Almost surely, 2^65709469 is an apocalyptic number.

It is an amenable number.

65709469 is a deficient number, since it is larger than the sum of its proper divisors (10103043).

65709469 is an equidigital number, since it uses as much as digits as its factorization.

65709469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 65709469 is about 8106.1377363082. The cubic root of 65709469 is about 403.5301472500.

The spelling of 65709469 in words is "sixty-five million, seven hundred nine thousand, four hundred sixty-nine".