486639 has 12 divisors (see below), whose sum is σ = 709800. Its totient is φ = 321264.

The previous prime is 486637. The next prime is 486641. The reversal of 486639 is 936684.

It is an interprime number because it is at equal distance from previous prime (486637) and next prime (486641).

It is not a de Polignac number, because 486639 - 2¹ = 486637 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1057 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (59150).

2⁴⁸⁶⁶³⁹ is an apocalyptic number.

486639 is a deficient number, since it is larger than the sum of its proper divisors (223161).

486639 is a wasteful number, since it uses less digits than its factorization.

486639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 486639 is about 697.5951547997. The cubic root of 486639 is about 78.6566846315.

Subtracting from 486639 its product of digits (31104), we obtain a triangular number (455535 = T₉₅₄).

The spelling of 486639 in words is "four hundred eighty-six thousand, six hundred thirty-nine".