2999890 has 16 divisors (see below), whose sum is σ = 5635008. Its totient is φ = 1147696.

The previous prime is 2999879. The next prime is 2999897. The reversal of 2999890 is 989992.

It is a happy number.

2999890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 2999890.

It is not an unprimeable number, because it can be changed into a prime (2999897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6292 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (352188).

2^2999890 is an apocalyptic number.

2999890 is a deficient number, since it is larger than the sum of its proper divisors (2635118).

2999890 is a wasteful number, since it uses less digits than its factorization.

2999890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13073.

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

The square root of 2999890 is about 1732.0190530130. The cubic root of 2999890 is about 144.2231942597.

The spelling of 2999890 in words is "two million, nine hundred ninety-nine thousand, eight hundred ninety".