5309823 has 16 divisors (see below), whose sum is σ = 7286400. Its totient is φ = 3438240.

The previous prime is 5309819. The next prime is 5309839. The reversal of 5309823 is 3289035.

It is a happy number.

It is not a de Polignac number, because 5309823 - 2² = 5309819 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5309023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23073 + ... + 23301.

It is an arithmetic number, because the mean of its divisors is an integer number (455400).

Almost surely, 2^5309823 is an apocalyptic number.

5309823 is a deficient number, since it is larger than the sum of its proper divisors (1976577).

5309823 is a wasteful number, since it uses less digits than its factorization.

5309823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 5309823 is about 2304.3053183118. The cubic root of 5309823 is about 174.4589876880.

The spelling of 5309823 in words is "five million, three hundred nine thousand, eight hundred twenty-three".