7828423 has 8 divisors (see below), whose sum is σ = 8093088. Its totient is φ = 7566624.

The previous prime is 7828421. The next prime is 7828427. The reversal of 7828423 is 3248287.

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 7828423 - 2¹ = 7828421 is a prime.

It is a super-2 number, since 2×7828423² = 122568413333858, which contains 22 as substring.

It is a Duffinian number.

7828423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828421) 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, 5790 + ... + 7012.

It is an arithmetic number, because the mean of its divisors is an integer number (1011636).

Almost surely, 2^7828423 is an apocalyptic number.

7828423 is a deficient number, since it is larger than the sum of its proper divisors (264665).

7828423 is a wasteful number, since it uses less digits than its factorization.

7828423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its digits is 21504, while the sum is 34.

The square root of 7828423 is about 2797.9319148257. The cubic root of 7828423 is about 198.5598463451.

The spelling of 7828423 in words is "seven million, eight hundred twenty-eight thousand, four hundred twenty-three".