2892981 has 16 divisors (see below), whose sum is σ = 4747904. Its totient is φ = 1525824.

The previous prime is 2892977. The next prime is 2892983. The reversal of 2892981 is 1892982.

It is not a de Polignac number, because 2892981 - 2² = 2892977 is a prime.

It is a super-2 number, since 2×2892981² = 16738678132722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2892983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5026 + ... + 5571.

It is an arithmetic number, because the mean of its divisors is an integer number (296744).

2^2892981 is an apocalyptic number.

2892981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2892981 is a deficient number, since it is larger than the sum of its proper divisors (1854923).

2892981 is a wasteful number, since it uses less digits than its factorization.

2892981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10620.

The product of its digits is 20736, while the sum is 39.

The square root of 2892981 is about 1700.8765387294. The cubic root of 2892981 is about 142.4891712301.

Subtracting from 2892981 its reverse (1892982), we obtain a palindrome (999999).

The spelling of 2892981 in words is "two million, eight hundred ninety-two thousand, nine hundred eighty-one".