34556981 has 4 divisors (see below), whose sum is σ = 34653600. Its totient is φ = 34460364.

The previous prime is 34556957. The next prime is 34556983. The reversal of 34556981 is 18965543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18965543 = 1117 ⋅16979.

It is a cyclic number.

It is not a de Polignac number, because 34556981 - 2¹⁰ = 34555957 is a prime.

It is a super-2 number, since 2×34556981² = 2388369871668722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34556983) 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, 47771 + ... + 48488.

It is an arithmetic number, because the mean of its divisors is an integer number (8663400).

Almost surely, 2^34556981 is an apocalyptic number.

It is an amenable number.

34556981 is a deficient number, since it is larger than the sum of its proper divisors (96619).

34556981 is an equidigital number, since it uses as much as digits as its factorization.

34556981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96618.

The product of its digits is 129600, while the sum is 41.

The square root of 34556981 is about 5878.5186059074. The cubic root of 34556981 is about 325.7206289620.

The spelling of 34556981 in words is "thirty-four million, five hundred fifty-six thousand, nine hundred eighty-one".