3208957961 has 32 divisors (see below), whose sum is σ = 3797611776. Its totient is φ = 2679040000.

The previous prime is 3208957951. The next prime is 3208957991. The reversal of 3208957961 is 1697598023.

It is a cyclic number.

It is not a de Polignac number, because 3208957961 - 2⁶ = 3208957897 is a prime.

It is a super-2 number, since 2×3208957961² = 20594822390930555042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3208957931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1339781 + ... + 1342173.

It is an arithmetic number, because the mean of its divisors is an integer number (118675368).

Almost surely, 2^3208957961 is an apocalyptic number.

It is an amenable number.

3208957961 is a deficient number, since it is larger than the sum of its proper divisors (588653815).

3208957961 is a wasteful number, since it uses less digits than its factorization.

3208957961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 3208957961 is about 56647.6650975131. The cubic root of 3208957961 is about 1474.9863771221.

It can be divided in two parts, 3208 and 957961, that added together give a palindrome (961169).

The spelling of 3208957961 in words is "three billion, two hundred eight million, nine hundred fifty-seven thousand, nine hundred sixty-one".