2820998 has 4 divisors (see below), whose sum is σ = 4231500. Its totient is φ = 1410498.

The previous prime is 2820977. The next prime is 2821001. The reversal of 2820998 is 8990282.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705248 + ... + 705251.

It is an arithmetic number, because the mean of its divisors is an integer number (1057875).

2^2820998 is an apocalyptic number.

2820998 is a deficient number, since it is larger than the sum of its proper divisors (1410502).

2820998 is a wasteful number, since it uses less digits than its factorization.

2820998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410501.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2820998 is about 1679.5826862647. The cubic root of 2820998 is about 141.2974289260.

The spelling of 2820998 in words is "two million, eight hundred twenty thousand, nine hundred ninety-eight".