2918961 has 6 divisors (see below), whose sum is σ = 4216290. Its totient is φ = 1945968.

The previous prime is 2918959. The next prime is 2918963. The reversal of 2918961 is 1698192.

It is an interprime number because it is at equal distance from previous prime (2918959) and next prime (2918963).

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 216225 = 1644^2 + 465^2 .

It is not a de Polignac number, because 2918961 - 2¹ = 2918959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2918963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162156 + ... + 162173.

It is an arithmetic number, because the mean of its divisors is an integer number (702715).

2^2918961 is an apocalyptic number.

It is an amenable number.

2918961 is a deficient number, since it is larger than the sum of its proper divisors (1297329).

2918961 is a wasteful number, since it uses less digits than its factorization.

2918961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324335 (or 324332 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 2918961 is about 1708.4967076351. The cubic root of 2918961 is about 142.9144352581.

The spelling of 2918961 in words is "two million, nine hundred eighteen thousand, nine hundred sixty-one".