65689238 has 8 divisors (see below), whose sum is σ = 98712432. Its totient is φ = 32785096.

The previous prime is 65689237. The next prime is 65689301. The reversal of 65689238 is 83298656.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 65689192 and 65689201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65689231) 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, 28370 + ... + 30597.

It is an arithmetic number, because the mean of its divisors is an integer number (12339054).

Almost surely, 2^65689238 is an apocalyptic number.

65689238 is a deficient number, since it is larger than the sum of its proper divisors (33023194).

65689238 is a wasteful number, since it uses less digits than its factorization.

65689238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59526.

The product of its digits is 622080, while the sum is 47.

The square root of 65689238 is about 8104.8897586580. The cubic root of 65689238 is about 403.4887292904.

The spelling of 65689238 in words is "sixty-five million, six hundred eighty-nine thousand, two hundred thirty-eight".