935661 has 8 divisors (see below), whose sum is σ = 1278144. Its totient is φ = 608480.

The previous prime is 935653. The next prime is 935677. The reversal of 935661 is 166539.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 935661 - 2³ = 935653 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 935661.

It is not an unprimeable number, because it can be changed into a prime (935621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3681 + ... + 3926.

It is an arithmetic number, because the mean of its divisors is an integer number (159768).

2⁹³⁵⁶⁶¹ is an apocalyptic number.

It is an amenable number.

935661 is a deficient number, since it is larger than the sum of its proper divisors (342483).

935661 is a wasteful number, since it uses less digits than its factorization.

935661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651.

The product of its digits is 4860, while the sum is 30.

The square root of 935661 is about 967.2957148670. The cubic root of 935661 is about 97.8076541030.

It can be divided in two parts, 935 and 661, that added together give a triangular number (1596 = T₅₆).

The spelling of 935661 in words is "nine hundred thirty-five thousand, six hundred sixty-one".