426765 has 16 divisors (see below), whose sum is σ = 713088. Its totient is φ = 217536.

The previous prime is 426763. The next prime is 426773. The reversal of 426765 is 567624.

426765 = T₂₂ + T₂₃ + ... + T₁₃₆.

It is not a de Polignac number, because 426765 - 2¹ = 426763 is a prime.

426765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426761) 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, 274 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (44568).

2⁴²⁶⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

426765 is a deficient number, since it is larger than the sum of its proper divisors (286323).

426765 is a wasteful number, since it uses less digits than its factorization.

426765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268.

The product of its digits is 10080, while the sum is 30.

The square root of 426765 is about 653.2725311843. The cubic root of 426765 is about 75.2886653168.

The spelling of 426765 in words is "four hundred twenty-six thousand, seven hundred sixty-five".