965978 has 16 divisors (see below), whose sum is σ = 1592136. Its totient is φ = 436800.

The previous prime is 965969. The next prime is 965983. The reversal of 965978 is 879569.

It can be written as a sum of positive squares in 4 ways, for example, as 896809 + 69169 = 947^2 + 263^2 .

It is a super-2 number, since 2×965978² = 1866226992968, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028 + ... + 1728.

2⁹⁶⁵⁹⁷⁸ is an apocalyptic number.

965978 is a deficient number, since it is larger than the sum of its proper divisors (626158).

965978 is a wasteful number, since it uses less digits than its factorization.

965978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its digits is 136080, while the sum is 44.

The square root of 965978 is about 982.8417980530. The cubic root of 965978 is about 98.8528235179.

The spelling of 965978 in words is "nine hundred sixty-five thousand, nine hundred seventy-eight".