64854079 has 4 divisors (see below), whose sum is σ = 65058984. Its totient is φ = 64649176.

The previous prime is 64854071. The next prime is 64854109. The reversal of 64854079 is 97045846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97045846 = 2 ⋅48522923.

It is a cyclic number.

It is not a de Polignac number, because 64854079 - 2³ = 64854071 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 (64854071) 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, 101977 + ... + 102610.

It is an arithmetic number, because the mean of its divisors is an integer number (16264746).

Almost surely, 2^64854079 is an apocalyptic number.

64854079 is a deficient number, since it is larger than the sum of its proper divisors (204905).

64854079 is a wasteful number, since it uses less digits than its factorization.

64854079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204904.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 64854079 is about 8053.2030273674. The cubic root of 64854079 is about 401.7714743650.

The spelling of 64854079 in words is "sixty-four million, eight hundred fifty-four thousand, seventy-nine".