64802223 has 12 divisors (see below), whose sum is σ = 94433040. Its totient is φ = 42818496.

The previous prime is 64802209. The next prime is 64802251. The reversal of 64802223 is 32220846.

It is not a de Polignac number, because 64802223 - 2⁶ = 64802159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64802203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30843 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (7869420).

Almost surely, 2^64802223 is an apocalyptic number.

64802223 is a deficient number, since it is larger than the sum of its proper divisors (29630817).

64802223 is a wasteful number, since it uses less digits than its factorization.

64802223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63838 (or 63835 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 64802223 is about 8049.9827950127. The cubic root of 64802223 is about 401.6643630506.

It can be divided in two parts, 64802 and 223, that added together give a square (65025 = 255²).

The spelling of 64802223 in words is "sixty-four million, eight hundred two thousand, two hundred twenty-three".