965601 has 40 divisors (see below), whose sum is σ = 1788864. Its totient is φ = 505440.

The previous prime is 965567. The next prime is 965603. The reversal of 965601 is 106569.

965601 is a `hidden beast` number, since 9 + 656 + 0 + 1 = 666.

It is not a de Polignac number, because 965601 - 2⁹ = 965089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (965603) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 7306 + ... + 7436.

2⁹⁶⁵⁶⁰¹ is an apocalyptic number.

965601 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

965601 is a deficient number, since it is larger than the sum of its proper divisors (823263).

965601 is a wasteful number, since it uses less digits than its factorization.

965601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 965601 is about 982.6499885514. The cubic root of 965601 is about 98.8399618158.

The spelling of 965601 in words is "nine hundred sixty-five thousand, six hundred one".