6461994 has 64 divisors (see below), whose sum is σ = 16422912. Its totient is φ = 1646400.

The previous prime is 6461953. The next prime is 6461999. The reversal of 6461994 is 4991646.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6461999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32704 + ... + 32900.

It is an arithmetic number, because the mean of its divisors is an integer number (256608).

Almost surely, 2^6461994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6461994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8211456).

6461994 is an abundant number, since it is smaller than the sum of its proper divisors (9960918).

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

6461994 is a wasteful number, since it uses less digits than its factorization.

6461994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its digits is 46656, while the sum is 39.

The square root of 6461994 is about 2542.0452395660. The cubic root of 6461994 is about 186.2611085968.

The spelling of 6461994 in words is "six million, four hundred sixty-one thousand, nine hundred ninety-four".