64873545 has 48 divisors (see below), whose sum is σ = 117874176. Its totient is φ = 30412800.

The previous prime is 64873531. The next prime is 64873553. The reversal of 64873545 is 54537846.

It is not a de Polignac number, because 64873545 - 2⁹ = 64873033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64873497 and 64873506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55689 + ... + 56841.

It is an arithmetic number, because the mean of its divisors is an integer number (2455712).

Almost surely, 2^64873545 is an apocalyptic number.

It is an amenable number.

64873545 is a deficient number, since it is larger than the sum of its proper divisors (53000631).

64873545 is a wasteful number, since it uses less digits than its factorization.

64873545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1203 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 64873545 is about 8054.4115241276. The cubic root of 64873545 is about 401.8116676794.

The spelling of 64873545 in words is "sixty-four million, eight hundred seventy-three thousand, five hundred forty-five".