623542003 has 12 divisors (see below), whose sum is σ = 728036832. Its totient is φ = 532481040.

The previous prime is 623541977. The next prime is 623542033. The reversal of 623542003 is 300245326.

It is a happy number.

It is not a de Polignac number, because 623542003 - 2⁹ = 623541491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623542033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10200 + ... + 36757.

It is an arithmetic number, because the mean of its divisors is an integer number (60669736).

Almost surely, 2^623542003 is an apocalyptic number.

623542003 is a deficient number, since it is larger than the sum of its proper divisors (104494829).

623542003 is a wasteful number, since it uses less digits than its factorization.

623542003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47242 (or 47235 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 623542003 is about 24970.8230340932. The cubic root of 623542003 is about 854.3226184108.

Adding to 623542003 its reverse (300245326), we get a palindrome (923787329).

The spelling of 623542003 in words is "six hundred twenty-three million, five hundred forty-two thousand, three".