623994201 has 24 divisors (see below), whose sum is σ = 908598600. Its totient is φ = 412655616.

The previous prime is 623994191. The next prime is 623994223. The reversal of 623994201 is 102499326.

623994201 is a `hidden beast` number, since 62 + 399 + 4 + 201 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 187142400 + 436851801 = 13680^2 + 20901^2 .

It is not a de Polignac number, because 623994201 - 2⁵ = 623994169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623994001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 806851 + ... + 807623.

It is an arithmetic number, because the mean of its divisors is an integer number (37858275).

Almost surely, 2^623994201 is an apocalyptic number.

It is an amenable number.

623994201 is a deficient number, since it is larger than the sum of its proper divisors (284604399).

623994201 is a wasteful number, since it uses less digits than its factorization.

623994201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 623994201 is about 24979.8759204284. The cubic root of 623994201 is about 854.5290892002.

The spelling of 623994201 in words is "six hundred twenty-three million, nine hundred ninety-four thousand, two hundred one".