65849069 has 16 divisors (see below), whose sum is σ = 80728704. Its totient is φ = 52852800.

The previous prime is 65849057. The next prime is 65849081. The reversal of 65849069 is 96094856.

It is an interprime number because it is at equal distance from previous prime (65849057) and next prime (65849081).

It is not a de Polignac number, because 65849069 - 2¹² = 65844973 is a prime.

It is a super-2 number, since 2×65849069² = 8672199776333522, 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 (65849009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6722 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (5045544).

Almost surely, 2^65849069 is an apocalyptic number.

It is an amenable number.

65849069 is a deficient number, since it is larger than the sum of its proper divisors (14879635).

65849069 is a wasteful number, since it uses less digits than its factorization.

65849069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20068.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 65849069 is about 8114.7439269517. The cubic root of 65849069 is about 403.8157121939.

The spelling of 65849069 in words is "sixty-five million, eight hundred forty-nine thousand, sixty-nine".