426651 has 4 divisors (see below), whose sum is σ = 568872. Its totient is φ = 284432.

The previous prime is 426641. The next prime is 426661. The reversal of 426651 is 156624.

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 (426641) and next prime (426661).

It is a cyclic number.

It is not a de Polignac number, because 426651 - 2¹³ = 418459 is a prime.

It is a D-number.

426651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (426611) 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, 71106 + ... + 71111.

It is an arithmetic number, because the mean of its divisors is an integer number (142218).

2⁴²⁶⁶⁵¹ is an apocalyptic number.

426651 is a deficient number, since it is larger than the sum of its proper divisors (142221).

426651 is a wasteful number, since it uses less digits than its factorization.

426651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142220.

The product of its digits is 1440, while the sum is 24.

The square root of 426651 is about 653.1852723386. The cubic root of 426651 is about 75.2819608681.

The spelling of 426651 in words is "four hundred twenty-six thousand, six hundred fifty-one".