481687 has 4 divisors (see below), whose sum is σ = 485496. Its totient is φ = 477880.

The previous prime is 481681. The next prime is 481693. The reversal of 481687 is 786184.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (481681) and next prime (481693).

It is a cyclic number.

It is not a de Polignac number, because 481687 - 2¹¹ = 479639 is a prime.

It is a Duffinian number.

481687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481681) 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, 1708 + ... + 1969.

It is an arithmetic number, because the mean of its divisors is an integer number (121374).

2⁴⁸¹⁶⁸⁷ is an apocalyptic number.

481687 is a deficient number, since it is larger than the sum of its proper divisors (3809).

481687 is a wasteful number, since it uses less digits than its factorization.

481687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808.

The product of its digits is 10752, while the sum is 34.

The square root of 481687 is about 694.0367425432. The cubic root of 481687 is about 78.3889730951.

Subtracting from 481687 its product of digits (10752), we obtain a triangular number (470935 = T₉₇₀).

The spelling of 481687 in words is "four hundred eighty-one thousand, six hundred eighty-seven".