427429643 has 8 divisors (see below), whose sum is σ = 464440320. Its totient is φ = 391870440.

The previous prime is 427429621. The next prime is 427429679. The reversal of 427429643 is 346924724.

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

It is not a de Polignac number, because 427429643 - 2²² = 423235339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427429643.

It is not an unprimeable number, because it can be changed into a prime (427429603) 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, 362255 + ... + 363432.

It is an arithmetic number, because the mean of its divisors is an integer number (58055040).

Almost surely, 2^427429643 is an apocalyptic number.

427429643 is a deficient number, since it is larger than the sum of its proper divisors (37010677).

427429643 is a wasteful number, since it uses less digits than its factorization.

427429643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725737.

The product of its digits is 290304, while the sum is 41.

The square root of 427429643 is about 20674.3716470417. The cubic root of 427429643 is about 753.2772985226.

The spelling of 427429643 in words is "four hundred twenty-seven million, four hundred twenty-nine thousand, six hundred forty-three".