368981 has 4 divisors (see below), whose sum is σ = 371052. Its totient is φ = 366912.

The previous prime is 368957. The next prime is 369007. The reversal of 368981 is 189863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 189863 = 29 ⋅6547.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 180625 = 434^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 368981 - 2¹⁰ = 367957 is a prime.

It is a super-2 number, since 2×368981² = 272293956722, which contains 22 as substring.

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 368981.

It is not an unprimeable number, because it can be changed into a prime (368911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740 + ... + 1133.

It is an arithmetic number, because the mean of its divisors is an integer number (92763).

2³⁶⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

368981 is a deficient number, since it is larger than the sum of its proper divisors (2071).

368981 is a wasteful number, since it uses less digits than its factorization.

368981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its digits is 10368, while the sum is 35.

The square root of 368981 is about 607.4380626862. The cubic root of 368981 is about 71.7245779135.

The spelling of 368981 in words is "three hundred sixty-eight thousand, nine hundred eighty-one".