427931349 has 8 divisors (see below), whose sum is σ = 570784320. Its totient is φ = 285182976.

The previous prime is 427931333. The next prime is 427931351. The reversal of 427931349 is 943139724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427931349 - 2⁴ = 427931333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427931349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427931359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16044 + ... + 33365.

It is an arithmetic number, because the mean of its divisors is an integer number (71348040).

Almost surely, 2^427931349 is an apocalyptic number.

It is an amenable number.

427931349 is a deficient number, since it is larger than the sum of its proper divisors (142852971).

427931349 is a wasteful number, since it uses less digits than its factorization.

427931349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52299.

The product of its digits is 163296, while the sum is 42.

The square root of 427931349 is about 20686.5016133710. The cubic root of 427931349 is about 753.5719091696.

The spelling of 427931349 in words is "four hundred twenty-seven million, nine hundred thirty-one thousand, three hundred forty-nine".