64140327 has 6 divisors (see below), whose sum is σ = 92647152. Its totient is φ = 42760212.

The previous prime is 64140317. The next prime is 64140331. The reversal of 64140327 is 72304146.

It is not a de Polignac number, because 64140327 - 2⁸ = 64140071 is a prime.

It is a super-2 number, since 2×64140327² = 8227963095333858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64140327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64140317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3563343 + ... + 3563360.

It is an arithmetic number, because the mean of its divisors is an integer number (15441192).

Almost surely, 2^64140327 is an apocalyptic number.

64140327 is a deficient number, since it is larger than the sum of its proper divisors (28506825).

64140327 is a wasteful number, since it uses less digits than its factorization.

64140327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126709 (or 7126706 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64140327 is about 8008.7656352274. The cubic root of 64140327 is about 400.2921345083.

The spelling of 64140327 in words is "sixty-four million, one hundred forty thousand, three hundred twenty-seven".