361917 has 6 divisors (see below), whose sum is σ = 522782. Its totient is φ = 241272.

The previous prime is 361909. The next prime is 361919. The reversal of 361917 is 719163.

It can be written as a sum of positive squares in only one way, i.e., 301401 + 60516 = 549^2 + 246^2 .

It is not a de Polignac number, because 361917 - 2³ = 361909 is a prime.

It is a Duffinian number.

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 361917.

It is not an unprimeable number, because it can be changed into a prime (361919) 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, 20098 + ... + 20115.

2³⁶¹⁹¹⁷ is an apocalyptic number.

It is an amenable number.

361917 is a deficient number, since it is larger than the sum of its proper divisors (160865).

361917 is a wasteful number, since it uses less digits than its factorization.

361917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40219 (or 40216 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 361917 is about 601.5953789716. The cubic root of 361917 is about 71.2639123341.

It can be divided in two parts, 36 and 1917, that added together give a triangular number (1953 = T₆₂).

The spelling of 361917 in words is "three hundred sixty-one thousand, nine hundred seventeen".