427515073 has 4 divisors (see below), whose sum is σ = 437457328. Its totient is φ = 417572820.

The previous prime is 427515059. The next prime is 427515089. The reversal of 427515073 is 370515724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427515073 - 2⁹ = 427514561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427515773) 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, 4971063 + ... + 4971148.

It is an arithmetic number, because the mean of its divisors is an integer number (109364332).

Almost surely, 2^427515073 is an apocalyptic number.

427515073 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

427515073 is a deficient number, since it is larger than the sum of its proper divisors (9942255).

427515073 is an equidigital number, since it uses as much as digits as its factorization.

427515073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942254.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 427515073 is about 20676.4376283730. The cubic root of 427515073 is about 753.3274808109.

The spelling of 427515073 in words is "four hundred twenty-seven million, five hundred fifteen thousand, seventy-three".