6634890 has 24 divisors (see below), whose sum is σ = 17250948. Its totient is φ = 1769280.

The previous prime is 6634889. The next prime is 6634891. The reversal of 6634890 is 984366.

It is an interprime number because it is at equal distance from previous prime (6634889) and next prime (6634891).

It can be written as a sum of positive squares in 2 ways, for example, as 6365529 + 269361 = 2523^2 + 519^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36771 + ... + 36950.

Almost surely, 2^6634890 is an apocalyptic number.

6634890 is an abundant number, since it is smaller than the sum of its proper divisors (10616058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6634890 is a wasteful number, since it uses less digits than its factorization.

6634890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73734 (or 73731 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6634890 is about 2575.8280222096. The cubic root of 6634890 is about 187.9076995233.

The spelling of 6634890 in words is "six million, six hundred thirty-four thousand, eight hundred ninety".