65228735 has 16 divisors (see below), whose sum is σ = 91959840. Its totient is φ = 43789440.

The previous prime is 65228731. The next prime is 65228741. The reversal of 65228735 is 53782256.

It is not a de Polignac number, because 65228735 - 2² = 65228731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65228731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44900 + ... + 46329.

It is an arithmetic number, because the mean of its divisors is an integer number (5747490).

Almost surely, 2^65228735 is an apocalyptic number.

65228735 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65228735 is a deficient number, since it is larger than the sum of its proper divisors (26731105).

65228735 is a wasteful number, since it uses less digits than its factorization.

65228735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91258.

The product of its digits is 100800, while the sum is 38.

The square root of 65228735 is about 8076.4308329856. The cubic root of 65228735 is about 402.5436548461.

The spelling of 65228735 in words is "sixty-five million, two hundred twenty-eight thousand, seven hundred thirty-five".