6499894 has 16 divisors (see below), whose sum is σ = 10313856. Its totient is φ = 3067200.

The previous prime is 6499879. The next prime is 6499897. The reversal of 6499894 is 4989946.

It is a super-2 number, since 2×6499894² = 84497244022472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499897) 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, 1264 + ... + 3820.

It is an arithmetic number, because the mean of its divisors is an integer number (644616).

Almost surely, 2^6499894 is an apocalyptic number.

6499894 is a deficient number, since it is larger than the sum of its proper divisors (3813962).

6499894 is a wasteful number, since it uses less digits than its factorization.

6499894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631.

The product of its digits is 559872, while the sum is 49.

The square root of 6499894 is about 2549.4889684013. The cubic root of 6499894 is about 186.6245433580.

The spelling of 6499894 in words is "six million, four hundred ninety-nine thousand, eight hundred ninety-four".