6451078 has 4 divisors (see below), whose sum is σ = 9676620. Its totient is φ = 3225538.

The previous prime is 6451033. The next prime is 6451087. The reversal of 6451078 is 8701546.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1612768 + ... + 1612771.

It is an arithmetic number, because the mean of its divisors is an integer number (2419155).

Almost surely, 2^6451078 is an apocalyptic number.

6451078 is a deficient number, since it is larger than the sum of its proper divisors (3225542).

6451078 is a wasteful number, since it uses less digits than its factorization.

6451078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225541.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6451078 is about 2539.8972420159. The cubic root of 6451078 is about 186.1561682218.

The spelling of 6451078 in words is "six million, four hundred fifty-one thousand, seventy-eight".