1964285 has 4 divisors (see below), whose sum is σ = 2357148. Its totient is φ = 1571424.

The previous prime is 1964243. The next prime is 1964297. The reversal of 1964285 is 5824691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5824691 = 83 ⋅70177.

It can be written as a sum of positive squares in 2 ways, for example, as 1413721 + 550564 = 1189^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1964285 - 2¹⁶ = 1898749 is a prime.

It is a super-2 number, since 2×1964285² = 7716831122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196424 + ... + 196433.

It is an arithmetic number, because the mean of its divisors is an integer number (589287).

2^1964285 is an apocalyptic number.

It is an amenable number.

1964285 is a deficient number, since it is larger than the sum of its proper divisors (392863).

1964285 is an equidigital number, since it uses as much as digits as its factorization.

1964285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392862.

The product of its digits is 17280, while the sum is 35.

The square root of 1964285 is about 1401.5295216299. The cubic root of 1964285 is about 125.2376279773.

The spelling of 1964285 in words is "one million, nine hundred sixty-four thousand, two hundred eighty-five".