4047423 has 8 divisors (see below), whose sum is σ = 5412528. Its totient is φ = 2690304.

The previous prime is 4047419. The next prime is 4047431. The reversal of 4047423 is 3247404.

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

It is not a de Polignac number, because 4047423 - 2² = 4047419 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4047393 and 4047402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047413) 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, 690 + ... + 2927.

It is an arithmetic number, because the mean of its divisors is an integer number (676566).

Almost surely, 2^4047423 is an apocalyptic number.

4047423 is a deficient number, since it is larger than the sum of its proper divisors (1365105).

4047423 is a wasteful number, since it uses less digits than its factorization.

4047423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 4047423 is about 2011.8208170709. The cubic root of 4047423 is about 159.3649699186.

The spelling of 4047423 in words is "four million, forty-seven thousand, four hundred twenty-three".