64391101 has 4 divisors (see below), whose sum is σ = 64601152. Its totient is φ = 64181052.

The previous prime is 64391077. The next prime is 64391111. The reversal of 64391101 is 10119346.

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 64391101 - 2⁷ = 64390973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64391111) 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, 104565 + ... + 105178.

It is an arithmetic number, because the mean of its divisors is an integer number (16150288).

Almost surely, 2^64391101 is an apocalyptic number.

It is an amenable number.

64391101 is a deficient number, since it is larger than the sum of its proper divisors (210051).

64391101 is a wasteful number, since it uses less digits than its factorization.

64391101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210050.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 64391101 is about 8024.4065824209. The cubic root of 64391101 is about 400.8131396397.

The spelling of 64391101 in words is "sixty-four million, three hundred ninety-one thousand, one hundred one".