64922845 has 8 divisors (see below), whose sum is σ = 83900376. Its totient is φ = 47942976.

The previous prime is 64922843. The next prime is 64922861. The reversal of 64922845 is 54822946.

It can be written as a sum of positive squares in 4 ways, for example, as 13111641 + 51811204 = 3621^2 + 7198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64922845 - 2¹ = 64922843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64922798 and 64922807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64922843) 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 7 ways as a sum of consecutive naturals, for example, 499342 + ... + 499471.

It is an arithmetic number, because the mean of its divisors is an integer number (10487547).

Almost surely, 2^64922845 is an apocalyptic number.

64922845 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64922845 is a deficient number, since it is larger than the sum of its proper divisors (18977531).

64922845 is a wasteful number, since it uses less digits than its factorization.

64922845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998831.

The product of its digits is 138240, while the sum is 40.

The square root of 64922845 is about 8057.4713775477. The cubic root of 64922845 is about 401.9134261562.

The spelling of 64922845 in words is "sixty-four million, nine hundred twenty-two thousand, eight hundred forty-five".