659481 has 16 divisors (see below), whose sum is σ = 949824. Its totient is φ = 405504.

The previous prime is 659473. The next prime is 659497. The reversal of 659481 is 184956.

659481 = T₂₇₀ + T₂₇₁ + ... + T₂₈₆.

It is not a de Polignac number, because 659481 - 2³ = 659473 is a prime.

It is a super-2 number, since 2×659481² = 869830378722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (659881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321 + ... + 3513.

It is an arithmetic number, because the mean of its divisors is an integer number (59364).

2⁶⁵⁹⁴⁸¹ is an apocalyptic number.

It is an amenable number.

659481 is a deficient number, since it is larger than the sum of its proper divisors (290343).

659481 is a wasteful number, since it uses less digits than its factorization.

659481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its digits is 8640, while the sum is 33.

The square root of 659481 is about 812.0843552243. The cubic root of 659481 is about 87.0430491138.

The spelling of 659481 in words is "six hundred fifty-nine thousand, four hundred eighty-one".