64529387 has 8 divisors (see below), whose sum is σ = 69565440. Its totient is φ = 59503680.

The previous prime is 64529363. The next prime is 64529393. The reversal of 64529387 is 78392546.

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

It is a cyclic number.

It is not a de Polignac number, because 64529387 - 2¹⁴ = 64513003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64529317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14687 + ... + 18567.

It is an arithmetic number, because the mean of its divisors is an integer number (8695680).

Almost surely, 2^64529387 is an apocalyptic number.

64529387 is a deficient number, since it is larger than the sum of its proper divisors (5036053).

64529387 is a wasteful number, since it uses less digits than its factorization.

64529387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173.

The product of its digits is 362880, while the sum is 44.

The square root of 64529387 is about 8033.0185484661. The cubic root of 64529387 is about 401.0998625673.

The spelling of 64529387 in words is "sixty-four million, five hundred twenty-nine thousand, three hundred eighty-seven".