2897990 has 16 divisors (see below), whose sum is σ = 5523552. Its totient is φ = 1090944.

The previous prime is 2897989. The next prime is 2898017. The reversal of 2897990 is 997982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8354 + ... + 8693.

It is an arithmetic number, because the mean of its divisors is an integer number (345222).

2^2897990 is an apocalyptic number.

2897990 is a deficient number, since it is larger than the sum of its proper divisors (2625562).

2897990 is a wasteful number, since it uses less digits than its factorization.

2897990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17071.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2897990 is about 1702.3483779767. The cubic root of 2897990 is about 142.5713605854.

The spelling of 2897990 in words is "two million, eight hundred ninety-seven thousand, nine hundred ninety".