623528 has 16 divisors (see below), whose sum is σ = 1198260. Its totient is φ = 304000.

The previous prime is 623521. The next prime is 623531. The reversal of 623528 is 825326.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 158404 = 682^2 + 398^2 .

It is a d-powerful number, because it can be written as 6⁴ + 2⁷ + 5⁷ + 3⁹ + 2¹⁹ + 8 .

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 623497 and 623506.

It is not an unprimeable number, because it can be changed into a prime (623521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623 + ... + 1278.

2⁶²³⁵²⁸ is an apocalyptic number.

It is an amenable number.

623528 is a deficient number, since it is larger than the sum of its proper divisors (574732).

623528 is a wasteful number, since it uses less digits than its factorization.

623528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1944 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 623528 is about 789.6378916947. The cubic root of 623528 is about 85.4316223135.

The spelling of 623528 in words is "six hundred twenty-three thousand, five hundred twenty-eight".