2775898 has 8 divisors (see below), whose sum is σ = 4221108. Its totient is φ = 1368864.

The previous prime is 2775889. The next prime is 2775907. The reversal of 2775898 is 8985772.

It is an interprime number because it is at equal distance from previous prime (2775889) and next prime (2775907).

It can be written as a sum of positive squares in 2 ways, for example, as 2442969 + 332929 = 1563^2 + 577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×2775898⁴ (a number of 27 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9361 + ... + 9652.

2^2775898 is an apocalyptic number.

2775898 is a deficient number, since it is larger than the sum of its proper divisors (1445210).

2775898 is a wasteful number, since it uses less digits than its factorization.

2775898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19088.

The product of its digits is 282240, while the sum is 46.

The square root of 2775898 is about 1666.1026378948. The cubic root of 2775898 is about 140.5403944085.

The spelling of 2775898 in words is "two million, seven hundred seventy-five thousand, eight hundred ninety-eight".