34648661 has 4 divisors (see below), whose sum is σ = 34692300. Its totient is φ = 34605024.

The previous prime is 34648657. The next prime is 34648673. The reversal of 34648661 is 16684643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16684643 = 349 ⋅47807.

It can be written as a sum of positive squares in 2 ways, for example, as 29495761 + 5152900 = 5431^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 34648661 - 2² = 34648657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34648631) 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, 20606 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (8673075).

Almost surely, 2^34648661 is an apocalyptic number.

It is an amenable number.

34648661 is a deficient number, since it is larger than the sum of its proper divisors (43639).

34648661 is an equidigital number, since it uses as much as digits as its factorization.

34648661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43638.

The product of its digits is 82944, while the sum is 38.

The square root of 34648661 is about 5886.3113237409. The cubic root of 34648661 is about 326.0084212511.

The spelling of 34648661 in words is "thirty-four million, six hundred forty-eight thousand, six hundred sixty-one".