2990217 has 4 divisors (see below), whose sum is σ = 3986960. Its totient is φ = 1993476.

The previous prime is 2990213. The next prime is 2990227. The reversal of 2990217 is 7120992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2990217 - 2² = 2990213 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498367 + ... + 498372.

It is an arithmetic number, because the mean of its divisors is an integer number (996740).

2^2990217 is an apocalyptic number.

It is an amenable number.

2990217 is a deficient number, since it is larger than the sum of its proper divisors (996743).

2990217 is an equidigital number, since it uses as much as digits as its factorization.

2990217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996742.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 2990217 is about 1729.2243926107. The cubic root of 2990217 is about 144.0680137813.

The spelling of 2990217 in words is "two million, nine hundred ninety thousand, two hundred seventeen".