6445098 has 48 divisors (see below), whose sum is σ = 15608736. Its totient is φ = 1905120.

The previous prime is 6445093. The next prime is 6445099. The reversal of 6445098 is 8905446.

6445098 is a `hidden beast` number, since 644 + 5 + 0 + 9 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6445093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8136 + ... + 8892.

It is an arithmetic number, because the mean of its divisors is an integer number (325182).

Almost surely, 2^6445098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6445098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7804368).

6445098 is an abundant number, since it is smaller than the sum of its proper divisors (9163638).

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

6445098 is a wasteful number, since it uses less digits than its factorization.

6445098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6445098 is about 2538.7197560975. The cubic root of 6445098 is about 186.0986296193.

The spelling of 6445098 in words is "six million, four hundred forty-five thousand, ninety-eight".