2858981 has 2 divisors, whose sum is σ = 2858982. Its totient is φ = 2858980.

The previous prime is 2858959. The next prime is 2859001. The reversal of 2858981 is 1898582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 982081 = 1370^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 2858981 - 2¹⁴ = 2842597 is a prime.

It is a super-2 number, since 2×2858981² = 16347544716722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2858951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429490 + 1429491.

It is an arithmetic number, because the mean of its divisors is an integer number (1429491).

2^2858981 is an apocalyptic number.

It is an amenable number.

2858981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2858981 is an equidigital number, since it uses as much as digits as its factorization.

2858981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 41.

The square root of 2858981 is about 1690.8521520228. The cubic root of 2858981 is about 141.9287647729.

The spelling of 2858981 in words is "two million, eight hundred fifty-eight thousand, nine hundred eighty-one".