1965956 has 6 divisors (see below), whose sum is σ = 3440430. Its totient is φ = 982976.

The previous prime is 1965941. The next prime is 1965959. The reversal of 1965956 is 6595691.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 33856 = 1390^2 + 184^2 .

It is not an unprimeable number, because it can be changed into a prime (1965959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245741 + ... + 245748.

It is an arithmetic number, because the mean of its divisors is an integer number (573405).

2^1965956 is an apocalyptic number.

It is an amenable number.

1965956 is a deficient number, since it is larger than the sum of its proper divisors (1474474).

1965956 is a wasteful number, since it uses less digits than its factorization.

1965956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491493 (or 491491 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The square root of 1965956 is about 1402.1255293304. The cubic root of 1965956 is about 125.2731307620.

The spelling of 1965956 in words is "one million, nine hundred sixty-five thousand, nine hundred fifty-six".