2646890 has 16 divisors (see below), whose sum is σ = 5015520. Its totient is φ = 1002960.

The previous prime is 2646887. The next prime is 2646893. The reversal of 2646890 is 986462.

It is an interprime number because it is at equal distance from previous prime (2646887) and next prime (2646893).

It is a self number, because there is not a number n which added to its sum of digits gives 2646890.

It is not an unprimeable number, because it can be changed into a prime (2646893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6776 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (313470).

2^2646890 is an apocalyptic number.

2646890 is a deficient number, since it is larger than the sum of its proper divisors (2368630).

2646890 is a wasteful number, since it uses less digits than its factorization.

2646890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2646890 is about 1626.9265502782. The cubic root of 2646890 is about 138.3285945378.

The spelling of 2646890 in words is "two million, six hundred forty-six thousand, eight hundred ninety".