65438841 has 16 divisors (see below), whose sum is σ = 98050176. Its totient is φ = 38518656.

The previous prime is 65438839. The next prime is 65438843. The reversal of 65438841 is 14883456.

It is an interprime number because it is at equal distance from previous prime (65438839) and next prime (65438843).

It is not a de Polignac number, because 65438841 - 2¹ = 65438839 is a prime.

It is a super-2 number, since 2×65438841² = 8564483822846562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65438841.

It is not an unprimeable number, because it can be changed into a prime (65438843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35580 + ... + 37373.

It is an arithmetic number, because the mean of its divisors is an integer number (6128136).

Almost surely, 2^65438841 is an apocalyptic number.

It is an amenable number.

65438841 is a deficient number, since it is larger than the sum of its proper divisors (32611335).

65438841 is a wasteful number, since it uses less digits than its factorization.

65438841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72992.

The product of its digits is 92160, while the sum is 39.

The square root of 65438841 is about 8089.4277300684. The cubic root of 65438841 is about 402.9753980552.

The spelling of 65438841 in words is "sixty-five million, four hundred thirty-eight thousand, eight hundred forty-one".