3455205961 has 9 divisors (see below), whose sum is σ = 3540017901. Its totient is φ = 3372383532.

The previous prime is 3455205907. The next prime is 3455205979. The reversal of 3455205961 is 1695025543.

The square root of 3455205961 is 58781.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3455205961 - 2²⁵ = 3421651529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3455205991) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2526900 + ... + 2528266.

Almost surely, 2^3455205961 is an apocalyptic number.

3455205961 is the 58781-st square number.

3455205961 is the 29391-st centered octagonal number.

It is an amenable number.

3455205961 is a deficient number, since it is larger than the sum of its proper divisors (84811940).

3455205961 is an frugal number, since it uses more digits than its factorization.

3455205961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The cubic root of 3455205961 is about 1511.7894609064.

The spelling of 3455205961 in words is "three billion, four hundred fifty-five million, two hundred five thousand, nine hundred sixty-one".