2355965 has 4 divisors (see below), whose sum is σ = 2827164. Its totient is φ = 1884768.

The previous prime is 2355949. The next prime is 2355971. The reversal of 2355965 is 5695532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 1585081 = 878^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 2355965 - 2⁴ = 2355949 is a prime.

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, 235592 + ... + 235601.

It is an arithmetic number, because the mean of its divisors is an integer number (706791).

2^2355965 is an apocalyptic number.

It is an amenable number.

2355965 is a deficient number, since it is larger than the sum of its proper divisors (471199).

2355965 is an equidigital number, since it uses as much as digits as its factorization.

2355965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471198.

The product of its digits is 40500, while the sum is 35.

The square root of 2355965 is about 1534.9153071098. The cubic root of 2355965 is about 133.0626836261.

The spelling of 2355965 in words is "two million, three hundred fifty-five thousand, nine hundred sixty-five".