64609001 has 4 divisors (see below), whose sum is σ = 67418112. Its totient is φ = 61799892.

The previous prime is 64608979. The next prime is 64609009. The reversal of 64609001 is 10090646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64609001 - 2¹⁸ = 64346857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64609009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404521 + ... + 1404566.

It is an arithmetic number, because the mean of its divisors is an integer number (16854528).

Almost surely, 2^64609001 is an apocalyptic number.

It is an amenable number.

64609001 is a deficient number, since it is larger than the sum of its proper divisors (2809111).

64609001 is a wasteful number, since it uses less digits than its factorization.

64609001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809110.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 64609001 is about 8037.9724433466. The cubic root of 64609001 is about 401.2647488942.

Adding to 64609001 its reverse (10090646), we get a palindrome (74699647).

The spelling of 64609001 in words is "sixty-four million, six hundred nine thousand, one".