2961556 has 24 divisors (see below), whose sum is σ = 5631080. Its totient is φ = 1362816.

The previous prime is 2961533. The next prime is 2961557. The reversal of 2961556 is 6551692.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1245456 + 1716100 = 1116^2 + 1310^2 .

It is a super-2 number, since 2×2961556² = 17541627882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961557) 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, 8620 + ... + 8956.

2^2961556 is an apocalyptic number.

2961556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2961556 is a deficient number, since it is larger than the sum of its proper divisors (2669524).

2961556 is a wasteful number, since it uses less digits than its factorization.

2961556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 352 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 2961556 is about 1720.9171973108. The cubic root of 2961556 is about 143.6062416625.

The spelling of 2961556 in words is "two million, nine hundred sixty-one thousand, five hundred fifty-six".