65841431 has 4 divisors (see below), whose sum is σ = 65873472. Its totient is φ = 65809392.

The previous prime is 65841421. The next prime is 65841437. The reversal of 65841431 is 13414856.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65841431 - 2¹⁴ = 65825047 is a prime.

It is a super-2 number, since 2×65841431² = 8670188072255522, 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 (65841437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12710 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (16468368).

Almost surely, 2^65841431 is an apocalyptic number.

65841431 is a deficient number, since it is larger than the sum of its proper divisors (32041).

65841431 is a wasteful number, since it uses less digits than its factorization.

65841431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32040.

The product of its digits is 11520, while the sum is 32.

The square root of 65841431 is about 8114.2732884714. The cubic root of 65841431 is about 403.8000983884.

The spelling of 65841431 in words is "sixty-five million, eight hundred forty-one thousand, four hundred thirty-one".