1964505 has 32 divisors (see below), whose sum is σ = 3392640. Its totient is φ = 967680.

The previous prime is 1964483. The next prime is 1964531. The reversal of 1964505 is 5054691.

It is not a de Polignac number, because 1964505 - 2¹³ = 1956313 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17329 + ... + 17441.

It is an arithmetic number, because the mean of its divisors is an integer number (106020).

2^1964505 is an apocalyptic number.

1964505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1964505 is a deficient number, since it is larger than the sum of its proper divisors (1428135).

1964505 is a wasteful number, since it uses less digits than its factorization.

1964505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1964505 is about 1401.6080051141. The cubic root of 1964505 is about 125.2423033426.

The spelling of 1964505 in words is "one million, nine hundred sixty-four thousand, five hundred five".