34311661 has 4 divisors (see below), whose sum is σ = 36330012. Its totient is φ = 32293312.

The previous prime is 34311649. The next prime is 34311671. The reversal of 34311661 is 16611343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11088900 + 23222761 = 3330^2 + 4819^2 .

It is a cyclic number.

It is not a de Polignac number, because 34311661 - 2²¹ = 32214509 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 (34311601) 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, 1009150 + ... + 1009183.

It is an arithmetic number, because the mean of its divisors is an integer number (9082503).

Almost surely, 2^34311661 is an apocalyptic number.

It is an amenable number.

34311661 is a deficient number, since it is larger than the sum of its proper divisors (2018351).

34311661 is a wasteful number, since it uses less digits than its factorization.

34311661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018350.

The product of its digits is 1296, while the sum is 25.

The square root of 34311661 is about 5857.6156411974. The cubic root of 34311661 is about 324.9480342950.

The spelling of 34311661 in words is "thirty-four million, three hundred eleven thousand, six hundred sixty-one".