6477451 has 4 divisors (see below), whose sum is σ = 6482592. Its totient is φ = 6472312.

The previous prime is 6477439. The next prime is 6477463. The reversal of 6477451 is 1547746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6477439) and next prime (6477463).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6477451 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6477491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 3676.

It is an arithmetic number, because the mean of its divisors is an integer number (1620648).

Almost surely, 2^6477451 is an apocalyptic number.

6477451 is a deficient number, since it is larger than the sum of its proper divisors (5141).

6477451 is a wasteful number, since it uses less digits than its factorization.

6477451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140.

The product of its digits is 23520, while the sum is 34.

The square root of 6477451 is about 2545.0836921406. The cubic root of 6477451 is about 186.4095016708.

It can be divided in two parts, 647745 and 1, that added together give a palindrome (647746).

The spelling of 6477451 in words is "six million, four hundred seventy-seven thousand, four hundred fifty-one".