451487 has 4 divisors (see below), whose sum is σ = 453120. Its totient is φ = 449856.

The previous prime is 451481. The next prime is 451499. The reversal of 451487 is 784154.

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 451487 - 2¹⁴ = 435103 is a prime.

It is a super-2 number, since 2×451487² = 407681022338, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451481) 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 in 3 ways as a sum of consecutive naturals, for example, 287 + ... + 992.

It is an arithmetic number, because the mean of its divisors is an integer number (113280).

2⁴⁵¹⁴⁸⁷ is an apocalyptic number.

451487 is a deficient number, since it is larger than the sum of its proper divisors (1633).

451487 is a wasteful number, since it uses less digits than its factorization.

451487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its digits is 4480, while the sum is 29.

The square root of 451487 is about 671.9278235049. The cubic root of 451487 is about 76.7152580012.

The spelling of 451487 in words is "four hundred fifty-one thousand, four hundred eighty-seven".