2998921 has 2 divisors, whose sum is σ = 2998922. Its totient is φ = 2998920.

The previous prime is 2998883. The next prime is 2998927. The reversal of 2998921 is 1298992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 855625 = 1464^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2998921 - 2¹⁵ = 2966153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2998927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499460 + 1499461.

It is an arithmetic number, because the mean of its divisors is an integer number (1499461).

2^2998921 is an apocalyptic number.

It is an amenable number.

2998921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2998921 is an equidigital number, since it uses as much as digits as its factorization.

2998921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 2998921 is about 1731.7392990863. The cubic root of 2998921 is about 144.2076639875.

The spelling of 2998921 in words is "two million, nine hundred ninety-eight thousand, nine hundred twenty-one".