64342527 has 4 divisors (see below), whose sum is σ = 85790040. Its totient is φ = 42895016.

The previous prime is 64342517. The next prime is 64342529. The reversal of 64342527 is 72524346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64342527 - 2⁴ = 64342511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10723752 + ... + 10723757.

It is an arithmetic number, because the mean of its divisors is an integer number (21447510).

Almost surely, 2^64342527 is an apocalyptic number.

64342527 is a deficient number, since it is larger than the sum of its proper divisors (21447513).

64342527 is a wasteful number, since it uses less digits than its factorization.

64342527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21447512.

The product of its digits is 40320, while the sum is 33.

The square root of 64342527 is about 8021.3793701582. The cubic root of 64342527 is about 400.7123286335.

The spelling of 64342527 in words is "sixty-four million, three hundred forty-two thousand, five hundred twenty-seven".