64221634 has 8 divisors (see below), whose sum is σ = 101402640. Its totient is φ = 30420756.

The previous prime is 64221623. The next prime is 64221673. The reversal of 64221634 is 43612246.

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

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, 844984 + ... + 845059.

It is an arithmetic number, because the mean of its divisors is an integer number (12675330).

Almost surely, 2^64221634 is an apocalyptic number.

64221634 is a deficient number, since it is larger than the sum of its proper divisors (37181006).

64221634 is a wasteful number, since it uses less digits than its factorization.

64221634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690064.

The product of its digits is 6912, while the sum is 28.

The square root of 64221634 is about 8013.8401531351. The cubic root of 64221634 is about 400.4612055193.

It can be divided in two parts, 6422163 and 4, that multiplied together give a palindrome (25688652).

The spelling of 64221634 in words is "sixty-four million, two hundred twenty-one thousand, six hundred thirty-four".