64616001 has 4 divisors (see below), whose sum is σ = 86154672. Its totient is φ = 43077332.

The previous prime is 64615981. The next prime is 64616003. The reversal of 64616001 is 10061646.

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 a de Polignac number, because none of the positive numbers 2^k-64616001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64616003) 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, 10769331 + ... + 10769336.

It is an arithmetic number, because the mean of its divisors is an integer number (21538668).

Almost surely, 2^64616001 is an apocalyptic number.

It is an amenable number.

64616001 is a deficient number, since it is larger than the sum of its proper divisors (21538671).

64616001 is a wasteful number, since it uses less digits than its factorization.

64616001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21538670.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 64616001 is about 8038.4078647454. The cubic root of 64616001 is about 401.2792399185.

Adding to 64616001 its reverse (10061646), we get a palindrome (74677647).

The spelling of 64616001 in words is "sixty-four million, six hundred sixteen thousand, one".