323620623 has 16 divisors (see below), whose sum is σ = 490589440. Its totient is φ = 210728952.

The previous prime is 323620621. The next prime is 323620631. The reversal of 323620623 is 326026323.

323620623 is a `hidden beast` number, since 3 + 2 + 36 + 2 + 0 + 623 = 666.

It is not a de Polignac number, because 323620623 - 2¹ = 323620621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323620621) 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, 138211 + ... + 140532.

It is an arithmetic number, because the mean of its divisors is an integer number (30661840).

Almost surely, 2^323620623 is an apocalyptic number.

323620623 is a deficient number, since it is larger than the sum of its proper divisors (166968817).

323620623 is a wasteful number, since it uses less digits than its factorization.

323620623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278795 (or 278789 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 323620623 is about 17989.4586633395. The cubic root of 323620623 is about 686.5603678365.

Adding to 323620623 its reverse (326026323), we get a palindrome (649646946).

The spelling of 323620623 in words is "three hundred twenty-three million, six hundred twenty thousand, six hundred twenty-three".