427915 has 12 divisors (see below), whose sum is σ = 544752. Its totient is φ = 322080.

The previous prime is 427913. The next prime is 427919. The reversal of 427915 is 519724.

It is a happy number.

It is not a de Polignac number, because 427915 - 2¹ = 427913 is a prime.

It is a super-2 number, since 2×427915² = 366222494450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427913) 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, 6985 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (45396).

2⁴²⁷⁹¹⁵ is an apocalyptic number.

427915 is a deficient number, since it is larger than the sum of its proper divisors (116837).

427915 is an equidigital number, since it uses as much as digits as its factorization.

427915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 89 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 427915 is about 654.1521229806. The cubic root of 427915 is about 75.3562312378.

Subtracting 427915 from its reverse (519724), we obtain a square (91809 = 303²).

The spelling of 427915 in words is "four hundred twenty-seven thousand, nine hundred fifteen".