64837842 has 32 divisors (see below), whose sum is σ = 137142720. Its totient is φ = 20378880.

The previous prime is 64837841. The next prime is 64837867. The reversal of 64837842 is 24873846.

It is a junction number, because it is equal to n+sod(n) for n = 64837794 and 64837803.

It is not an unprimeable number, because it can be changed into a prime (64837841) 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, 25342 + ... + 27782.

It is an arithmetic number, because the mean of its divisors is an integer number (4285710).

Almost surely, 2^64837842 is an apocalyptic number.

64837842 is an abundant number, since it is smaller than the sum of its proper divisors (72304878).

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

64837842 is a wasteful number, since it uses less digits than its factorization.

64837842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698.

The product of its digits is 258048, while the sum is 42.

The square root of 64837842 is about 8052.1948560625. The cubic root of 64837842 is about 401.7379421234.

The spelling of 64837842 in words is "sixty-four million, eight hundred thirty-seven thousand, eight hundred forty-two".