65835381 has 16 divisors (see below), whose sum is σ = 91627200. Its totient is φ = 42007680.

The previous prime is 65835379. The next prime is 65835383. The reversal of 65835381 is 18353856.

It is an interprime number because it is at equal distance from previous prime (65835379) and next prime (65835383).

It is not a de Polignac number, because 65835381 - 2¹ = 65835379 is a prime.

It is a super-2 number, since 2×65835381² = 8668594782830322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65835383) 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, 1470 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (5726700).

Almost surely, 2^65835381 is an apocalyptic number.

It is an amenable number.

65835381 is a deficient number, since it is larger than the sum of its proper divisors (25791819).

65835381 is a wasteful number, since it uses less digits than its factorization.

65835381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196.

The product of its digits is 86400, while the sum is 39.

The square root of 65835381 is about 8113.9004800404. The cubic root of 65835381 is about 403.7877299582.

The spelling of 65835381 in words is "sixty-five million, eight hundred thirty-five thousand, three hundred eighty-one".