6451694 has 4 divisors (see below), whose sum is σ = 9677544. Its totient is φ = 3225846.

The previous prime is 6451691. The next prime is 6451723. The reversal of 6451694 is 4961546.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6451691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612922 + ... + 1612925.

It is an arithmetic number, because the mean of its divisors is an integer number (2419386).

Almost surely, 2^6451694 is an apocalyptic number.

6451694 is a deficient number, since it is larger than the sum of its proper divisors (3225850).

6451694 is a wasteful number, since it uses less digits than its factorization.

6451694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225849.

The product of its digits is 25920, while the sum is 35.

The square root of 6451694 is about 2540.0185038696. The cubic root of 6451694 is about 186.1620932548.

The spelling of 6451694 in words is "six million, four hundred fifty-one thousand, six hundred ninety-four".