34681661 has 6 divisors (see below), whose sum is σ = 40344030. Its totient is φ = 29727096.

The previous prime is 34681601. The next prime is 34681667. The reversal of 34681661 is 16618643.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 6528025 = 5306^2 + 2555^2 .

It is not a de Polignac number, because 34681661 - 2⁶ = 34681597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34681667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 353846 + ... + 353943.

It is an arithmetic number, because the mean of its divisors is an integer number (6724005).

Almost surely, 2^34681661 is an apocalyptic number.

It is an amenable number.

34681661 is a deficient number, since it is larger than the sum of its proper divisors (5662369).

34681661 is an equidigital number, since it uses as much as digits as its factorization.

34681661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707803 (or 707796 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 34681661 is about 5889.1137703393. The cubic root of 34681661 is about 326.1118871469. Note that the first 3 decimals are identical.

The spelling of 34681661 in words is "thirty-four million, six hundred eighty-one thousand, six hundred sixty-one".