2897455 has 16 divisors (see below), whose sum is σ = 3830400. Its totient is φ = 2086560.

The previous prime is 2897449. The next prime is 2897491. The reversal of 2897455 is 5547982.

It is not a de Polignac number, because 2897455 - 2⁵ = 2897423 is a prime.

2897455 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7456 + ... + 7834.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

2^2897455 is an apocalyptic number.

2897455 is the 1390-th pentagonal number.

2897455 is a deficient number, since it is larger than the sum of its proper divisors (932945).

2897455 is a wasteful number, since it uses less digits than its factorization.

2897455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its digits is 100800, while the sum is 40.

The square root of 2897455 is about 1702.1912348500. The cubic root of 2897455 is about 142.5625866453.

It can be divided in two parts, 289 and 7455, that added together give a square (7744 = 88²).

The spelling of 2897455 in words is "two million, eight hundred ninety-seven thousand, four hundred fifty-five".