5451647 has 4 divisors (see below), whose sum is σ = 5584656. Its totient is φ = 5318640.

The previous prime is 5451643. The next prime is 5451673. The reversal of 5451647 is 7461545.

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

It is a cyclic number.

It is not a de Polignac number, because 5451647 - 2² = 5451643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451643) 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, 66443 + ... + 66524.

It is an arithmetic number, because the mean of its divisors is an integer number (1396164).

Almost surely, 2^5451647 is an apocalyptic number.

5451647 is a deficient number, since it is larger than the sum of its proper divisors (133009).

5451647 is a wasteful number, since it uses less digits than its factorization.

5451647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133008.

The product of its digits is 16800, while the sum is 32.

The square root of 5451647 is about 2334.8762279830. The cubic root of 5451647 is about 175.9986118176.

The spelling of 5451647 in words is "five million, four hundred fifty-one thousand, six hundred forty-seven".