426515 has 4 divisors (see below), whose sum is σ = 511824. Its totient is φ = 341208.

The previous prime is 426487. The next prime is 426527. The reversal of 426515 is 515624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426515 - 2¹⁶ = 360979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42647 + ... + 42656.

It is an arithmetic number, because the mean of its divisors is an integer number (127956).

2⁴²⁶⁵¹⁵ is an apocalyptic number.

426515 is a deficient number, since it is larger than the sum of its proper divisors (85309).

426515 is an equidigital number, since it uses as much as digits as its factorization.

426515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85308.

The product of its digits is 1200, while the sum is 23.

The square root of 426515 is about 653.0811588157. The cubic root of 426515 is about 75.2739610160.

The spelling of 426515 in words is "four hundred twenty-six thousand, five hundred fifteen".