2775998 has 8 divisors (see below), whose sum is σ = 4408992. Its totient is φ = 1306336.

The previous prime is 2775991. The next prime is 2776001. The reversal of 2775998 is 8995772.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40790 + ... + 40857.

It is an arithmetic number, because the mean of its divisors is an integer number (551124).

2^2775998 is an apocalyptic number.

2775998 is a deficient number, since it is larger than the sum of its proper divisors (1632994).

2775998 is a wasteful number, since it uses less digits than its factorization.

2775998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81666.

The product of its digits is 317520, while the sum is 47.

The square root of 2775998 is about 1666.1326477805. The cubic root of 2775998 is about 140.5420820151.

It can be divided in two parts, 2775 and 998, that added together give a palindrome (3773).

The spelling of 2775998 in words is "two million, seven hundred seventy-five thousand, nine hundred ninety-eight".