2897986 has 16 divisors (see below), whose sum is σ = 5350464. Its totient is φ = 1146384.

The previous prime is 2897981. The next prime is 2897989. The reversal of 2897986 is 6897982.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897981) 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, 7780 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (334404).

2^2897986 is an apocalyptic number.

2897986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2897986 is a deficient number, since it is larger than the sum of its proper divisors (2452478).

2897986 is a wasteful number, since it uses less digits than its factorization.

2897986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945.

The product of its digits is 435456, while the sum is 49.

The square root of 2897986 is about 1702.3472031287. The cubic root of 2897986 is about 142.5712949899.

It can be divided in two parts, 2897 and 986, that added together give a palindrome (3883).

The spelling of 2897986 in words is "two million, eight hundred ninety-seven thousand, nine hundred eighty-six".