2897775 has 48 divisors (see below), whose sum is σ = 5490720. Its totient is φ = 1516320.

The previous prime is 2897753. The next prime is 2897789. The reversal of 2897775 is 5777982.

It is not a de Polignac number, because 2897775 - 2⁶ = 2897711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (246960) is a multiple of the sum of its prime factors (84).

It is a self number, because there is not a number n which added to its sum of digits gives 2897775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54649 + ... + 54701.

It is an arithmetic number, because the mean of its divisors is an integer number (114390).

2^2897775 is an apocalyptic number.

2897775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2897775 is a deficient number, since it is larger than the sum of its proper divisors (2592945).

2897775 is an frugal number, since it uses more digits than its factorization.

2897775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 61 counting only the distinct ones).

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

The square root of 2897775 is about 1702.2852287440. The cubic root of 2897775 is about 142.5678347393.

The spelling of 2897775 in words is "two million, eight hundred ninety-seven thousand, seven hundred seventy-five".