4626561 has 4 divisors (see below), whose sum is σ = 6168752. Its totient is φ = 3084372.

The previous prime is 4626547. The next prime is 4626577. The reversal of 4626561 is 1656264.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4626561 - 2⁶ = 4626497 is a prime.

It is a D-number.

It is a Duffinian number.

4626561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4626511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771091 + ... + 771096.

It is an arithmetic number, because the mean of its divisors is an integer number (1542188).

Almost surely, 2^4626561 is an apocalyptic number.

It is an amenable number.

4626561 is a deficient number, since it is larger than the sum of its proper divisors (1542191).

4626561 is a wasteful number, since it uses less digits than its factorization.

4626561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542190.

The product of its digits is 8640, while the sum is 30.

The square root of 4626561 is about 2150.9442112709. The cubic root of 4626561 is about 166.6298349723.

The spelling of 4626561 in words is "four million, six hundred twenty-six thousand, five hundred sixty-one".