64839234 has 8 divisors (see below), whose sum is σ = 129678480. Its totient is φ = 21613076.

The previous prime is 64839217. The next prime is 64839263. The reversal of 64839234 is 43293846.

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

64839234 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 64839192 and 64839201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5403264 + ... + 5403275.

It is an arithmetic number, because the mean of its divisors is an integer number (16209810).

Almost surely, 2^64839234 is an apocalyptic number.

64839234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64839234 is a wasteful number, since it uses less digits than its factorization.

64839234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10806544.

The product of its digits is 124416, while the sum is 39.

The square root of 64839234 is about 8052.2812916589. The cubic root of 64839234 is about 401.7408170660.

The spelling of 64839234 in words is "sixty-four million, eight hundred thirty-nine thousand, two hundred thirty-four".