427337813 has 4 divisors (see below), whose sum is σ = 488386080. Its totient is φ = 366289548.

The previous prime is 427337747. The next prime is 427337893. The reversal of 427337813 is 318733724.

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 427337813 - 2¹⁸ = 427075669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427337893) 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, 30524123 + ... + 30524136.

It is an arithmetic number, because the mean of its divisors is an integer number (122096520).

Almost surely, 2^427337813 is an apocalyptic number.

It is an amenable number.

427337813 is a deficient number, since it is larger than the sum of its proper divisors (61048267).

427337813 is an equidigital number, since it uses as much as digits as its factorization.

427337813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61048266.

The product of its digits is 84672, while the sum is 38.

The square root of 427337813 is about 20672.1506621832. The cubic root of 427337813 is about 753.2233493641.

The spelling of 427337813 in words is "four hundred twenty-seven million, three hundred thirty-seven thousand, eight hundred thirteen".