427099231 has 4 divisors (see below), whose sum is σ = 459953032. Its totient is φ = 394245432.

The previous prime is 427099229. The next prime is 427099243. The reversal of 427099231 is 132990724.

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 427099231 - 2¹ = 427099229 is a prime.

It is a super-2 number, since 2×427099231² = 364827506241582722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427099261) 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, 16426881 + ... + 16426906.

It is an arithmetic number, because the mean of its divisors is an integer number (114988258).

Almost surely, 2^427099231 is an apocalyptic number.

427099231 is a deficient number, since it is larger than the sum of its proper divisors (32853801).

427099231 is a wasteful number, since it uses less digits than its factorization.

427099231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32853800.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 427099231 is about 20666.3792426250. The cubic root of 427099231 is about 753.0831488162.

The spelling of 427099231 in words is "four hundred twenty-seven million, ninety-nine thousand, two hundred thirty-one".