623611461 has 8 divisors (see below), whose sum is σ = 907071264. Its totient is φ = 377946320.

The previous prime is 623611433. The next prime is 623611481. The reversal of 623611461 is 164116326.

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 623611461 - 2¹⁵ = 623578693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623611421) 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, 9448626 + ... + 9448691.

It is an arithmetic number, because the mean of its divisors is an integer number (113383908).

Almost surely, 2^623611461 is an apocalyptic number.

It is an amenable number.

623611461 is a deficient number, since it is larger than the sum of its proper divisors (283459803).

623611461 is a wasteful number, since it uses less digits than its factorization.

623611461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18897331.

The product of its digits is 5184, while the sum is 30.

The square root of 623611461 is about 24972.2137785179. The cubic root of 623611461 is about 854.3543389883.

Adding to 623611461 its reverse (164116326), we get a palindrome (787727787).

The spelling of 623611461 in words is "six hundred twenty-three million, six hundred eleven thousand, four hundred sixty-one".