3206620261 has 8 divisors (see below), whose sum is σ = 3526758144. Its totient is φ = 2896978800.

The previous prime is 3206620259. The next prime is 3206620267. The reversal of 3206620261 is 1620266023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3206620261 - 2¹ = 3206620259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3206620267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623465 + ... + 2624686.

It is an arithmetic number, because the mean of its divisors is an integer number (440844768).

Almost surely, 2^3206620261 is an apocalyptic number.

It is an amenable number.

3206620261 is a deficient number, since it is larger than the sum of its proper divisors (320137883).

3206620261 is a wasteful number, since it uses less digits than its factorization.

3206620261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248211.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3206620261 is about 56627.0276546456. The cubic root of 3206620261 is about 1474.6281182176.

Adding to 3206620261 its reverse (1620266023), we get a palindrome (4826886284).

The spelling of 3206620261 in words is "three billion, two hundred six million, six hundred twenty thousand, two hundred sixty-one".