64230791 has 4 divisors (see below), whose sum is σ = 66302784. Its totient is φ = 62158800.

The previous prime is 64230769. The next prime is 64230799. The reversal of 64230791 is 19703246.

64230791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64230791 - 2¹⁸ = 63968647 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 (64230799) 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, 1035950 + ... + 1036011.

It is an arithmetic number, because the mean of its divisors is an integer number (16575696).

Almost surely, 2^64230791 is an apocalyptic number.

64230791 is a deficient number, since it is larger than the sum of its proper divisors (2071993).

64230791 is a wasteful number, since it uses less digits than its factorization.

64230791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071992.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 64230791 is about 8014.4114568694. The cubic root of 64230791 is about 400.4802377818.

The spelling of 64230791 in words is "sixty-four million, two hundred thirty thousand, seven hundred ninety-one".