354987 has 6 divisors (see below), whose sum is σ = 512772. Its totient is φ = 236652.

The previous prime is 354983. The next prime is 354997. The reversal of 354987 is 789453.

It is not a de Polignac number, because 354987 - 2² = 354983 is a prime.

It is a plaindrome in base 4 and base 16.

It is not an unprimeable number, because it can be changed into a prime (354983) 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 5 ways as a sum of consecutive naturals, for example, 19713 + ... + 19730.

It is an arithmetic number, because the mean of its divisors is an integer number (85462).

2³⁵⁴⁹⁸⁷ is an apocalyptic number.

354987 is a deficient number, since it is larger than the sum of its proper divisors (157785).

354987 is a wasteful number, since it uses less digits than its factorization.

354987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39449 (or 39446 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 354987 is about 595.8078549331. The cubic root of 354987 is about 70.8061231897.

The spelling of 354987 in words is "three hundred fifty-four thousand, nine hundred eighty-seven".