6463894 has 4 divisors (see below), whose sum is σ = 9695844. Its totient is φ = 3231946.

The previous prime is 6463883. The next prime is 6463901. The reversal of 6463894 is 4983646.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 6² + 4² + 6⁸ + 3¹⁴ + 8³ + 9³ + 4² .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615972 + ... + 1615975.

It is an arithmetic number, because the mean of its divisors is an integer number (2423961).

Almost surely, 2^6463894 is an apocalyptic number.

6463894 is a deficient number, since it is larger than the sum of its proper divisors (3231950).

6463894 is a wasteful number, since it uses less digits than its factorization.

6463894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231949.

The product of its digits is 124416, while the sum is 40.

The square root of 6463894 is about 2542.4189269277. The cubic root of 6463894 is about 186.2793620661.

The spelling of 6463894 in words is "six million, four hundred sixty-three thousand, eight hundred ninety-four".