64443027 has 16 divisors (see below), whose sum is σ = 94515840. Its totient is φ = 39053960.

The previous prime is 64442999. The next prime is 64443053. The reversal of 64443027 is 72034446.

It is not a de Polignac number, because 64443027 - 2⁷ = 64442899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64442985 and 64443003.

It is not an unprimeable number, because it can be changed into a prime (64443097) 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, 4077 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (5907240).

Almost surely, 2^64443027 is an apocalyptic number.

64443027 is a deficient number, since it is larger than the sum of its proper divisors (30072813).

64443027 is a wasteful number, since it uses less digits than its factorization.

64443027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16175 (or 16153 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 64443027 is about 8027.6414344439. The cubic root of 64443027 is about 400.9208513718.

The spelling of 64443027 in words is "sixty-four million, four hundred forty-three thousand, twenty-seven".