623963441 has 4 divisors (see below), whose sum is σ = 625411584. Its totient is φ = 622515300.

The previous prime is 623963413. The next prime is 623963453. The reversal of 623963441 is 144369326.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623963441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623963395 and 623963404.

It is not an unprimeable number, because it can be changed into a prime (623963141) 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, 723425 + ... + 724286.

It is an arithmetic number, because the mean of its divisors is an integer number (156352896).

Almost surely, 2^623963441 is an apocalyptic number.

It is an amenable number.

623963441 is a deficient number, since it is larger than the sum of its proper divisors (1448143).

623963441 is a wasteful number, since it uses less digits than its factorization.

623963441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448142.

The product of its digits is 93312, while the sum is 38.

The square root of 623963441 is about 24979.2602172282. The cubic root of 623963441 is about 854.5150475384.

The spelling of 623963441 in words is "six hundred twenty-three million, nine hundred sixty-three thousand, four hundred forty-one".