1964395 has 4 divisors (see below), whose sum is σ = 2357280. Its totient is φ = 1571512.

The previous prime is 1964387. The next prime is 1964399. The reversal of 1964395 is 5934691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5934691 = 7 ⋅847813.

It is a cyclic number.

It is not a de Polignac number, because 1964395 - 2³ = 1964387 is a prime.

It is a d-powerful number, because it can be written as 1 + 9⁴ + 6⁸ + 4⁷ + 3¹¹ + 9⁴ + 5⁷ .

1964395 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1964399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196435 + ... + 196444.

It is an arithmetic number, because the mean of its divisors is an integer number (589320).

2^1964395 is an apocalyptic number.

1964395 is a deficient number, since it is larger than the sum of its proper divisors (392885).

1964395 is an equidigital number, since it uses as much as digits as its factorization.

1964395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392884.

The product of its digits is 29160, while the sum is 37.

The square root of 1964395 is about 1401.5687639213. The cubic root of 1964395 is about 125.2399657036.

The spelling of 1964395 in words is "one million, nine hundred sixty-four thousand, three hundred ninety-five".