864641107 has 4 divisors (see below), whose sum is σ = 943244856. Its totient is φ = 786037360.

The previous prime is 864641101. The next prime is 864641117. The reversal of 864641107 is 701146468.

It is a happy number.

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 864641107 - 2⁷ = 864640979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864641101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39301858 + ... + 39301879.

It is an arithmetic number, because the mean of its divisors is an integer number (235811214).

Almost surely, 2^864641107 is an apocalyptic number.

864641107 is a deficient number, since it is larger than the sum of its proper divisors (78603749).

864641107 is a wasteful number, since it uses less digits than its factorization.

864641107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78603748.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 864641107 is about 29404.7803426586. The cubic root of 864641107 is about 952.6761502348.

It can be divided in two parts, 86464 and 1107, that added together give a triangular number (87571 = T₄₁₈).

The spelling of 864641107 in words is "eight hundred sixty-four million, six hundred forty-one thousand, one hundred seven".