2990989 has 4 divisors (see below), whose sum is σ = 3121056. Its totient is φ = 2860924.

The previous prime is 2990987. The next prime is 2990993. The reversal of 2990989 is 9890992.

It is a happy number.

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 2990989 - 2¹ = 2990987 is a prime.

It is a Duffinian number.

2990989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990983) 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, 64999 + ... + 65044.

It is an arithmetic number, because the mean of its divisors is an integer number (780264).

2^2990989 is an apocalyptic number.

It is an amenable number.

2990989 is a deficient number, since it is larger than the sum of its proper divisors (130067).

2990989 is a wasteful number, since it uses less digits than its factorization.

2990989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130066.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 2990989 is about 1729.4475996687. The cubic root of 2990989 is about 144.0804109793.

The spelling of 2990989 in words is "two million, nine hundred ninety thousand, nine hundred eighty-nine".