6499869 has 8 divisors (see below), whose sum is σ = 9043392. Its totient is φ = 4144800.

The previous prime is 6499861. The next prime is 6499879. The reversal of 6499869 is 9689946.

6499869 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6499869 - 2³ = 6499861 is a prime.

It is a super-2 number, since 2×6499869² = 84496594034322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499861) 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, 47032 + ... + 47169.

It is an arithmetic number, because the mean of its divisors is an integer number (1130424).

Almost surely, 2^6499869 is an apocalyptic number.

6499869 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6499869 is a deficient number, since it is larger than the sum of its proper divisors (2543523).

6499869 is a wasteful number, since it uses less digits than its factorization.

6499869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94227.

The product of its digits is 839808, while the sum is 51.

The square root of 6499869 is about 2549.4840654532. The cubic root of 6499869 is about 186.6243040915.

The spelling of 6499869 in words is "six million, four hundred ninety-nine thousand, eight hundred sixty-nine".