4917561 has 48 divisors (see below), whose sum is σ = 8171520. Its totient is φ = 2613600.

The previous prime is 4917557. The next prime is 4917571. The reversal of 4917561 is 1657194.

4917561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4917561 - 2² = 4917557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4917511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158616 + ... + 158646.

It is an arithmetic number, because the mean of its divisors is an integer number (170240).

Almost surely, 2^4917561 is an apocalyptic number.

It is an amenable number.

4917561 is a deficient number, since it is larger than the sum of its proper divisors (3253959).

4917561 is a wasteful number, since it uses less digits than its factorization.

4917561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 87 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 4917561 is about 2217.5574400678. The cubic root of 4917561 is about 170.0525904189.

The spelling of 4917561 in words is "four million, nine hundred seventeen thousand, five hundred sixty-one".