426861 has 12 divisors (see below), whose sum is σ = 631488. Its totient is φ = 277704.

The previous prime is 426859. The next prime is 426863. The reversal of 426861 is 168624.

It is an interprime number because it is at equal distance from previous prime (426859) and next prime (426863).

It is not a de Polignac number, because 426861 - 2¹ = 426859 is a prime.

It is a super-3 number, since 3×426861³ = 233335429663546143, which contains 333 as substring.

Its product of digits (2304) is a multiple of the sum of its prime factors (1152).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426863) 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, 165 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (52624).

2⁴²⁶⁸⁶¹ is an apocalyptic number.

It is an amenable number.

426861 is a deficient number, since it is larger than the sum of its proper divisors (204627).

426861 is a wasteful number, since it uses less digits than its factorization.

426861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1149 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 426861 is about 653.3460032785. The cubic root of 426861 is about 75.2943102424.

It can be divided in two parts, 42 and 6861, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 426861 in words is "four hundred twenty-six thousand, eight hundred sixty-one".