6889090 has 32 divisors (see below), whose sum is σ = 13471920. Its totient is φ = 2521344.

The previous prime is 6889087. The next prime is 6889133. The reversal of 6889090 is 909886.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2053489 + 4835601 = 1433^2 + 2199^2 .

It is a super-2 number, since 2×6889090² = 94919122056200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25476 + ... + 25744.

Almost surely, 2^6889090 is an apocalyptic number.

6889090 is a deficient number, since it is larger than the sum of its proper divisors (6582830).

6889090 is a wasteful number, since it uses less digits than its factorization.

6889090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 6889090 is about 2624.7076027626. The cubic root of 6889090 is about 190.2774340346.

It can be divided in two parts, 68890 and 90, that multiplied together give a square (6200100 = 2490²).

The spelling of 6889090 in words is "six million, eight hundred eighty-nine thousand, ninety".