6542890 has 16 divisors (see below), whose sum is σ = 11920608. Its totient is φ = 2585296.

The previous prime is 6542867. The next prime is 6542927. The reversal of 6542890 is 982456.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3112 + ... + 4771.

It is an arithmetic number, because the mean of its divisors is an integer number (745038).

Almost surely, 2^6542890 is an apocalyptic number.

6542890 is a deficient number, since it is larger than the sum of its proper divisors (5377718).

6542890 is a wasteful number, since it uses less digits than its factorization.

6542890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7973.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6542890 is about 2557.9073478138. The cubic root of 6542890 is about 187.0351388112.

The spelling of 6542890 in words is "six million, five hundred forty-two thousand, eight hundred ninety".