427504073 has 4 divisors (see below), whose sum is σ = 427655040. Its totient is φ = 427353108.

The previous prime is 427504069. The next prime is 427504087. The reversal of 427504073 is 370405724.

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 427504073 - 2² = 427504069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427504093) 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, 71153 + ... + 76926.

It is an arithmetic number, because the mean of its divisors is an integer number (106913760).

Almost surely, 2^427504073 is an apocalyptic number.

It is an amenable number.

427504073 is a deficient number, since it is larger than the sum of its proper divisors (150967).

427504073 is a wasteful number, since it uses less digits than its factorization.

427504073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150966.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 427504073 is about 20676.1716233930. The cubic root of 427504073 is about 753.3210196950.

Adding to 427504073 its reverse (370405724), we get a palindrome (797909797).

The spelling of 427504073 in words is "four hundred twenty-seven million, five hundred four thousand, seventy-three".