34540661 has 4 divisors (see below), whose sum is σ = 34740492. Its totient is φ = 34340832.

The previous prime is 34540657. The next prime is 34540663. The reversal of 34540661 is 16604543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16604543 = 67 ⋅247829.

It can be written as a sum of positive squares in 2 ways, for example, as 27352900 + 7187761 = 5230^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 34540661 - 2² = 34540657 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 (34540663) 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, 99656 + ... + 100001.

It is an arithmetic number, because the mean of its divisors is an integer number (8685123).

Almost surely, 2^34540661 is an apocalyptic number.

It is an amenable number.

34540661 is a deficient number, since it is larger than the sum of its proper divisors (199831).

34540661 is a wasteful number, since it uses less digits than its factorization.

34540661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199830.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 34540661 is about 5877.1303371629. The cubic root of 34540661 is about 325.6693455691.

The spelling of 34540661 in words is "thirty-four million, five hundred forty thousand, six hundred sixty-one".