623560361 has 8 divisors (see below), whose sum is σ = 635314248. Its totient is φ = 611856000.

The previous prime is 623560309. The next prime is 623560363. The reversal of 623560361 is 163065326.

It can be written as a sum of positive squares in 4 ways, for example, as 309136 + 623251225 = 556^2 + 24965^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623560361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (623560363) 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, 13541 + ... + 37821.

It is an arithmetic number, because the mean of its divisors is an integer number (79414281).

Almost surely, 2^623560361 is an apocalyptic number.

623560361 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

623560361 is a deficient number, since it is larger than the sum of its proper divisors (11753887).

623560361 is a wasteful number, since it uses less digits than its factorization.

623560361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24763.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 623560361 is about 24971.1906203929. The cubic root of 623560361 is about 854.3310025029.

The spelling of 623560361 in words is "six hundred twenty-three million, five hundred sixty thousand, three hundred sixty-one".