64693230 has 64 divisors (see below), whose sum is σ = 181094400. Its totient is φ = 14784672.

The previous prime is 64693217. The next prime is 64693243. The reversal of 64693230 is 3239646.

It is an interprime number because it is at equal distance from previous prime (64693217) and next prime (64693243).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64693191 and 64693200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7147 + ... + 13433.

It is an arithmetic number, because the mean of its divisors is an integer number (2829600).

Almost surely, 2^64693230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64693230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90547200).

64693230 is an abundant number, since it is smaller than the sum of its proper divisors (116401170).

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

64693230 is a wasteful number, since it uses less digits than its factorization.

64693230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318 (or 6304 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 64693230 is about 8043.2101800214. The cubic root of 64693230 is about 401.4390458260.

The spelling of 64693230 in words is "sixty-four million, six hundred ninety-three thousand, two hundred thirty".