34981 has 2 divisors, whose sum is σ = 34982. Its totient is φ = 34980.

The previous prime is 34963. The next prime is 35023. The reversal of 34981 is 18943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30625 + 4356 = 175^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 34981 - 2⁵ = 34949 is a prime.

It is a super-2 number, since 2×34981² = 2447340722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 4² + 9 + 8⁵ + 1 .

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 34981 parts by 264 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17490 + 17491.

It is an arithmetic number, because the mean of its divisors is an integer number (17491).

2³⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

34981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34981 is an equidigital number, since it uses as much as digits as its factorization.

34981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 34981 is about 187.0320828093. The cubic root of 34981 is about 32.7047429581.

The spelling of 34981 in words is "thirty-four thousand, nine hundred eighty-one".