64488427 has 4 divisors (see below), whose sum is σ = 65265480. Its totient is φ = 63711376.

The previous prime is 64488409. The next prime is 64488469. The reversal of 64488427 is 72488446.

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 64488427 - 2¹⁹ = 63964139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64482427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388402 + ... + 388567.

It is an arithmetic number, because the mean of its divisors is an integer number (16316370).

Almost surely, 2^64488427 is an apocalyptic number.

64488427 is a deficient number, since it is larger than the sum of its proper divisors (777053).

64488427 is an equidigital number, since it uses as much as digits as its factorization.

64488427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777052.

The product of its digits is 344064, while the sum is 43.

The square root of 64488427 is about 8030.4686662735. The cubic root of 64488427 is about 401.0149786177.

The spelling of 64488427 in words is "sixty-four million, four hundred eighty-eight thousand, four hundred twenty-seven".