4623561 has 24 divisors (see below), whose sum is σ = 7076160.
Its totient is φ = 3015792.
The previous prime is 4623559. The next prime is 4623569. The reversal of 4623561 is 1653264.
It can be divided in two parts, 4623 and 561, that multiplied together give a triangular number (2593503 = T2277).
It is not a de Polignac number, because 4623561 - 21 = 4623559 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (4623569) 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, 12700 + ... + 13058.
It is an arithmetic number, because the mean of its divisors is an integer number (294840).
Almost surely, 24623561 is an apocalyptic number.
It is an amenable number.
4623561 is a deficient number, since it is larger than the sum of its proper divisors (2452599).
4623561 is an equidigital number, since it uses as much as digits as its factorization.
4623561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 427 (or 415 counting only the distinct ones).
The product of its digits is 4320, while the sum is 27.
The square root of 4623561 is about 2150.2467300289.
The cubic root of 4623561 is about 166.5938112683.
The spelling of 4623561 in words is "four million, six hundred twenty-three thousand, five hundred sixty-one".