623323641 has 8 divisors (see below), whose sum is σ = 832199104. Its totient is φ = 414998640.

The previous prime is 623323607. The next prime is 623323669. The reversal of 623323641 is 146323326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623323641 - 2¹⁰ = 623322617 is a prime.

It is a super-2 number, since 2×623323641² = 777064722858993762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623323599 and 623323608.

It is not an unprimeable number, because it can be changed into a prime (603323641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134965 + ... + 139506.

It is an arithmetic number, because the mean of its divisors is an integer number (104024888).

Almost surely, 2^623323641 is an apocalyptic number.

It is an amenable number.

623323641 is a deficient number, since it is larger than the sum of its proper divisors (208875463).

623323641 is a wasteful number, since it uses less digits than its factorization.

623323641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275231.

The product of its digits is 15552, while the sum is 30.

The square root of 623323641 is about 24966.4503083638. The cubic root of 623323641 is about 854.2228799406. Note that the first 3 decimals are identical.

Adding to 623323641 its reverse (146323326), we get a palindrome (769646967).

The spelling of 623323641 in words is "six hundred twenty-three million, three hundred twenty-three thousand, six hundred forty-one".