356986 has 16 divisors (see below), whose sum is σ = 627264. Its totient is φ = 149184.

The previous prime is 356981. The next prime is 356989. The reversal of 356986 is 689653.

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 7 ways as a sum of consecutive naturals, for example, 306 + ... + 898.

It is an arithmetic number, because the mean of its divisors is an integer number (39204).

2³⁵⁶⁹⁸⁶ is an apocalyptic number.

356986 is a deficient number, since it is larger than the sum of its proper divisors (270278).

356986 is a wasteful number, since it uses less digits than its factorization.

356986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its digits is 38880, while the sum is 37.

The square root of 356986 is about 597.4830541530. The cubic root of 356986 is about 70.9387821189.

It can be divided in two parts, 3569 and 86, that added together give a triangular number (3655 = T₈₅).

The spelling of 356986 in words is "three hundred fifty-six thousand, nine hundred eighty-six".