451478727 has 18 divisors (see below), whose sum is σ = 745576728. Its totient is φ = 257891472.

The previous prime is 451478653. The next prime is 451478737. The reversal of 451478727 is 727874154.

It is not a de Polignac number, because 451478727 - 2⁸ = 451478471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451478737) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 167313 + ... + 169989.

Almost surely, 2^451478727 is an apocalyptic number.

451478727 is a deficient number, since it is larger than the sum of its proper divisors (294098001).

451478727 is an frugal number, since it uses more digits than its factorization.

451478727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367 (or 2687 counting only the distinct ones).

The product of its digits is 439040, while the sum is 45.

The square root of 451478727 is about 21248.0287791597. The cubic root of 451478727 is about 767.1478942423.

The spelling of 451478727 in words is "four hundred fifty-one million, four hundred seventy-eight thousand, seven hundred twenty-seven".