7143427 has 8 divisors (see below), whose sum is σ = 7292592. Its totient is φ = 6996000.

The previous prime is 7143421. The next prime is 7143439. The reversal of 7143427 is 7243417.

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

It is a cyclic number.

It is not a de Polignac number, because 7143427 - 2³ = 7143419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7143395 and 7143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10477 + ... + 11137.

It is an arithmetic number, because the mean of its divisors is an integer number (911574).

Almost surely, 2^7143427 is an apocalyptic number.

7143427 is a deficient number, since it is larger than the sum of its proper divisors (149165).

7143427 is a wasteful number, since it uses less digits than its factorization.

7143427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its digits is 4704, while the sum is 28.

The square root of 7143427 is about 2672.7190275074. The cubic root of 7143427 is about 192.5907999144.

The spelling of 7143427 in words is "seven million, one hundred forty-three thousand, four hundred twenty-seven".