356985 has 12 divisors (see below), whose sum is σ = 618852. Its totient is φ = 190368.

The previous prime is 356981. The next prime is 356989. The reversal of 356985 is 589653.

356985 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (356981) and next prime (356989).

It can be written as a sum of positive squares in 2 ways, for example, as 114921 + 242064 = 339^2 + 492^2 .

It is not a de Polignac number, because 356985 - 2² = 356981 is a prime.

356985 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356985.

It is not an unprimeable number, because it can be changed into a prime (356981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3922 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (51571).

2³⁵⁶⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

356985 is a deficient number, since it is larger than the sum of its proper divisors (261867).

356985 is a wasteful number, since it uses less digits than its factorization.

356985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944 (or 7941 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 356985 is about 597.4822173086. The cubic root of 356985 is about 70.9387158802.

The spelling of 356985 in words is "three hundred fifty-six thousand, nine hundred eighty-five".