623660411 has 8 divisors (see below), whose sum is σ = 682506864. Its totient is φ = 565172320.

The previous prime is 623660383. The next prime is 623660413. The reversal of 623660411 is 114066326.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 623660411 - 2¹⁸ = 623398267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623660413) 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, 85940 + ... + 92913.

It is an arithmetic number, because the mean of its divisors is an integer number (85313358).

Almost surely, 2^623660411 is an apocalyptic number.

623660411 is a deficient number, since it is larger than the sum of its proper divisors (58846453).

623660411 is a wasteful number, since it uses less digits than its factorization.

623660411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179181.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 623660411 is about 24973.1938486049. The cubic root of 623660411 is about 854.3766924104.

The spelling of 623660411 in words is "six hundred twenty-three million, six hundred sixty thousand, four hundred eleven".