2961905 has 8 divisors (see below), whose sum is σ = 3621672. Its totient is φ = 2324608.

The previous prime is 2961901. The next prime is 2961923. The reversal of 2961905 is 5091692.

It can be written as a sum of positive squares in 4 ways, for example, as 1079521 + 1882384 = 1039^2 + 1372^2 .

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 2961905 - 2² = 2961901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2961901) 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, 5324 + ... + 5853.

It is an arithmetic number, because the mean of its divisors is an integer number (452709).

2^2961905 is an apocalyptic number.

It is an amenable number.

2961905 is a deficient number, since it is larger than the sum of its proper divisors (659767).

2961905 is a wasteful number, since it uses less digits than its factorization.

2961905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11235.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 2961905 is about 1721.0185937403. The cubic root of 2961905 is about 143.6118824596.

The spelling of 2961905 in words is "two million, nine hundred sixty-one thousand, nine hundred five".