2775897 has 8 divisors (see below), whose sum is σ = 4112480. Its totient is φ = 1850580.

The previous prime is 2775889. The next prime is 2775907. The reversal of 2775897 is 7985772.

It is not a de Polignac number, because 2775897 - 2³ = 2775889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2775697) 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, 51379 + ... + 51432.

It is an arithmetic number, because the mean of its divisors is an integer number (514060).

2^2775897 is an apocalyptic number.

2775897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2775897 is a deficient number, since it is larger than the sum of its proper divisors (1336583).

2775897 is a wasteful number, since it uses less digits than its factorization.

2775897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102820 (or 102814 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 2775897 is about 1666.1023377932. The cubic root of 2775897 is about 140.5403775323.

The spelling of 2775897 in words is "two million, seven hundred seventy-five thousand, eight hundred ninety-seven".