8551641 has 8 divisors (see below), whose sum is σ = 13031104. Its totient is φ = 4886640.

The previous prime is 8551639. The next prime is 8551667. The reversal of 8551641 is 1461558.

8551641 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8551641 - 2¹ = 8551639 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8551599 and 8551608.

It is not an unprimeable number, because it can be changed into a prime (8551601) 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, 203590 + ... + 203631.

It is an arithmetic number, because the mean of its divisors is an integer number (1628888).

Almost surely, 2^8551641 is an apocalyptic number.

It is an amenable number.

8551641 is a deficient number, since it is larger than the sum of its proper divisors (4479463).

8551641 is a wasteful number, since it uses less digits than its factorization.

8551641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407231.

The product of its digits is 4800, while the sum is 30.

The square root of 8551641 is about 2924.3188950592. The cubic root of 8551641 is about 204.4952165196.

The spelling of 8551641 in words is "eight million, five hundred fifty-one thousand, six hundred forty-one".